Showing posts with label Double Slit Experiment. Show all posts
Showing posts with label Double Slit Experiment. Show all posts

Saturday, March 15, 2014

More Profound Things: The Non-Living

There are many things and concepts within the collective worldviews of humanity that are considered pretty mundane. However, there’s certainly a collection of things and ideas which rise to the top in profoundness when compared and contrasted with the ordinary everyday routine. These are the sorts of profound things and concepts which keep you awake at night, pondering the Big Issues. No two people will come up with identical lists. Without further ado, here are some more of mine. 

* Matter: Matter is profoundly just frozen energy. Matter and energy are not different things but the same thing, as Einstein theoretically proposed and the Manhattan Project demonstrated. Even burning a match turns some matter into energy; a nuclear reaction even more so; and the ultimate – matter-antimatter annihilation. Energy is probably more fundamental than matter since it’s much easier to turn matter into energy than energy into matter, at least on the macro scale.  

* Electrons in the Twilight Zone: When an electron rises or falls from one atomic energy level to another, when in-between levels the electron is in a profound limbo, in Never-Never-Land, in The Twilight Zone, in another dimension for all we know. It just can’t be anywhere that’s locatable in-between for if it was – in-between that is – it would possess an in-between energy state that it is not allowed to have.

* Delayed Double Slit Experiment & Time Travel: We all know about the infamous Double Slit experiment, which in one variation allows the experimenter to peek and thus see if one particle (photon, electron, etc.) can actually pass through two slits at the same time, which is what happens when the experimenter turns her back. Of course the particle will only go through one slit or the other if there is a Peeping-Tomboy around. But what if someone, human or independent observation device, peeks, but only after the particle has already passed through presumably but absurdly both slits? That shouldn’t affect the outcome since it’s now too little to late for the particle to change its mind. But again, irregardless, the normal particle-that-passes-through-both-slits that results in an eventual wave interference pattern, that pattern disappears even after the peeking is done, even after the particle has passed through both slits. The one very nasty implication is that the particle travels back in time to just before or when it was emitted so as to now make the correct choice (pass through one and only one slit) to correlate what it does with what is detected - A profound conclusion indeed.  

* Pane in the Glass:  You have one light source. You have one normal everyday clear and clean pane of glass. Some of the light (photons) from the light source will pass clear through the clear glass, but some of those identical photons will reflect off the clear surface of the pane of glass. One set of circumstances yields two differing but simultaneous outcomes. That violates cause-and-effect. One could almost say photons exhibit a restricted form of ‘free will’. That’s crazy, that’s profound, but it happens as you can verify for yourself. 

* Electric Charge: The electric charge of the proton is exactly equal and opposite to the electric charge of the electron, despite the proton being nearly 2000 times more massive. There’s no set in concrete theoretical reason why this should be so. This could be considered a profound example of ‘fine tuning’ that makes our cosmos a ‘Goldilocks’ (bio-friendly) Universe.

* Matter & Antimatter: Theory predicts there should be equal amounts of matter and antimatter in the Universe. Observation shows that there is a massive predominance of matter over antimatter. Something is screwy somewhere. Anytime something is screwy somewhere, profoundness is not far behind.

* Mother Nature: Why are there laws of Nature? Why is Nature organised? Why is Nature creative? Why is Nature self-ordering? One could imagine a universe where there was nothing but an endless cosmic ‘soup’ of quarks and electrons and neutrinos and photons and there were no interactions between them. All was just chaos and there was no mathematics, hence no physics, hence no chemistry, hence no biology. That the in-the-beginning chaotic state profoundly evolved into laws and organization and creativity and the self-ordering of things, instead of remaining forever and a day in a chaotic state, gave rise to Goldilocks.  

* Goldilocks: Why is the cosmos bio-friendly? Well the Universe, or at least our Universe, has to be bio-friendly otherwise we wouldn’t be here to wonder why our Universe was, well, bio-friendly. But why is it so, when one can envision all sorts of universes where the laws, relationships and principles of physics could be just ever so slightly differently that would make your existence, and all other life-as-we-know-it life forms, impossible. That makes our bio-friendly Universe a rather profound Universe.

* Time and Time Again: What is time? We all know what time is, at least until we’re required to actually have to explain it. It’s pretty profound that we have such trouble coming to terms with something so fundamental in our lives; a concept that has been philosophically and scientifically been bounced around like a ping-pong ball since the beginnings of recorded history and probably even before that.

* Grandma, Ma and Baby Make Three: There are three generations of particles. There are three generations of quarks; three generations of electrons; three generations of neutrinos. That’s profound because there’s absolutely no theoretical reason why that should be, especially seeing as how only one generation plays any sort of substantial role in life, the Universe and everything, including those bits and pieces that make you, you.

* Spooky Action at a Distance: It’s not too difficult to imagine two entangled objects or concepts such that if you uncover the properties of one, you immediately know the properties of the other. If you know that Jane goes shopping on Fridays, and only on Fridays, and you see Jane at the supermarket, you also immediately know that it is Friday! Jane and Fridays are entangled. But things get spooky when two objects are entangled but their properties are only statistical probabilities. The vacuum energy might spontaneously produce two particles, one matter, and the other antimatter. Say they separate and eventually are light years apart. You track down one particle and it’s a 50/50 chance that it’s matter, or antimatter. Both are actually in a superposition of state, both particles equally matter and antimatter at the same time until such time as you observe the properties of one (or the other), then the collective probabilistic wave-function of the two particles collapses down into an either/or state. Say the particle you tracked down then observed collapses into a matter particle. You then immediately know that the other particle light years away is an antimatter particle. Somehow the particle you observed communicated to its entangled partner that the gig was up – instantaneously even though it was light years away. And of course you acquired the knowledge about the status of the unobserved particle instantaneously even though it was light years away. So profound was this scenario that Einstein finally rejected the whole concept of quantum mechanics being probabilistic, calling this “spooky action at a distance”. 

* Impressive Space! If you remove all the empty space within an atom, and do that for each and every atom that’s part and parcel of each and human being on the planet, one could in theory fit the entirety of the human race into a volume the size of a sugar cube. But that’s just a baby step towards a theoretical singularity and since the constituents are now already in direct contact (no space, remember), so what’s left to compress. Can an electron be squeezed down and further than its normal volume? 


Monday, January 13, 2014

The Hidden Variable

You don’t have to read too many books on quantum or particle physics, especially the more popular tomes that replace advanced and technical mathematics for English, to realize the number of times free will and awareness terms like how particles ‘decide’ or ‘choose’ or ‘know’ are used.

If one were to actually suggest that the fundamental building blocks of our reality, those elementary particles like photons and electrons had some sort of ‘awareness’ or ‘self-awareness’ and an ability to exhibit ‘free will’ and make ‘decisions’, let’s just say the vast majority not just of the scientific community but even the general public at large (the great unwashed) would view that person as a loony. Well, since I have no academic reputation to defend, I’ll wax lyrical and promote that point of view, while noting that a particle’s ‘free will’ would be restricted, just as your own free will (assuming you have such a property) is restricted. You can’t flap your arms and fly and live long enough to challenge Methuselah’s longevity, free will be damned.

Here are several quantum reasons why one could adopt such a worldview.  

* Firstly there’s the famous (or infamous) Copenhagen Interpretation of quantum phenomena. This philosophical interpretation of quantum physics suggests that something (micro or macro composed of micro bits) only has reality and thus either/or fixed properties when somebody (or a measuring device proxy like a camera or a screen) is observing whatever that something is. Just like you are aware, even if sometimes via a 6th sense, that you are being watched (you of course are always either/or since you observe yourself), the Copenhagen Interpretation implies that from the micro ground up, fundamental particles are ‘conscious’ or ‘subconscious’ of the fact that somebody (or device) is watching them. I believe the technical term is that the observer collapses the wave-function of all that is possible down to one actuality. If the elementary particles didn’t ‘know’ you were observing them then everything you observe would remain in a superposition of state and your reality would be a living nightmare.

Schrodinger’s Cat would really be both alive and dead when you looked into the box. But let’s substitute something else for the cat since in theory the cat is an observer and observes itself. Instead of the cat, let’s have a box of a chemical (Y) that will react with the vial of gas (X) that may or may not break depending on whether a radioactive atom does or does not decay in a certain time frame. If the atom decays then the hammer will fall and then the vial will break and release the gas and there will form a new compound (Z). It’s only when you open the box that you find Z, or not Z, though before you looked Z/not-Z was in a superposition of state of both Z and not-Z. When you look, how does the constituents of Z or not-Z (not-Z being the intact gas X and the intact chemical Y) ‘know’ you’ve opened the box?

So how does an electron (or other fundamental particle) ‘know’ you are watching? It can’t. If a photon bounces off an electron, the electron has no way of ‘knowing’ that the photon is heading towards your eyeball. For all the electron ‘knows’ the photon is heading off into the depths of deepest space never to be observed by anyone or anything.

* A particle apparently also ‘knows’ when you are peeking, as in for example that famous, or infamous double-slit experiment (and variations on the theme). The late Nobel Prize winning quantum physicist, Richard Feynman, thought the double slit experiment (and variations on the theme) was the heart and soul behind the anomaly that is quantum physics. It was the ultimate anomaly in a sea of anomalies that could not, in any shape, manner or form, be explained by any sort of, or resort to, classical physics available in the observable Universe. 

If photons, electrons, Buckminsterfullerene molecules (Bucky-balls), etc. are fired in rapid succession at a single slit, with a detector (like say photographic film or a TV screen) behind the slit, then a quasi-blob of impacts are detected. Particles rule, okay!

If photons, electrons, Bucky-balls, etc. are fired in rapid succession at a double slit, with a detector behind the dual slits, then a classic wave interference (constructive and destructive interference) pattern emerges. Waves rule, okay!

If photons, electrons, Bucky-balls, etc. are fired one at a time, at a single slit, such that one photon, etc. completes the journey before the next one is fired off, again with a detector behind the slit, then a quasi-blob of impacts are ultimately detected. Particles rule, okay!

If photons, electrons, Bucky-balls, etc. are fired one at a time at a double slit, such that one photon, etc. completes the journey before the next one is fired off, again with a detector behind the slits, then ultimately after enough firings, a classic wave interference (constructive and destructive) pattern emerges. Waves! However, that implies one photon, electron, Bucky-ball, etc. somehow manages to go through both slits at the same time and thus interferes with itself. That’s absurd. But you ain’t seen anything yet!

The above assumes nobody (human observer or independent measuring device) is peeking and taking the slightest notice of what’s going on – the non-observing nobodies are just looking at the pattern on the detector screen after the fact; after the experiment has concluded. 

However, if someone, human observer or independent measuring device, is peeking and taking absolute and total notice of what’s going on, and determining at the precise time of passage which of the two slits the lone photon, etc. is actually going through (on the grounds that one entity cannot pass through two doors at the same time) then the wave interference pattern doesn’t eventuate and you get a quasi-blob of particle hits on the detector behind each of the two slits. Somehow the photon, etc. is ‘aware’ that it is being observed and changes it’s self-interfering behavior accordingly – keeping in mind that the very act of observing before-the-fact unobserved properties of a photon, etc. alters those properties after-the-fact, since you can’t observe something without mucking around with it.  

The Delayed Double-Slit Variation:

What if someone, human observer or independent measuring device, peeks, but only after the photon, etc. has already passed through presumably, but absurdly, both slits simultaneously and self-interfered with itself? That shouldn’t affect the ultimate wave outcome since it’s now too little to late for the photon, etc. to change its ‘mind’. Or so you would think. But again, irregardless, the wave interference pattern disappears even after the peeking is done after the photon, etc. has passed through both slits and self-interfered. The one very nasty and anomalous implication is that the photon, etc. has traveled back in time to just before, or when it was, initially emitted so as to now make the ‘correct choice’ and thus will pass through one and only one slit to correlate what it actually does with what is actually detected. How can ‘free will’ and time travel be accounted for in the delayed variation of the double-slit experiment? 

Summary: If you turn your back and don’t peek, and there’s a double slit available, the detector screen, and therefore you, will detect a wave pattern at the conclusion of the experiment because the photon, etc. will pass through both slits and self-interfere.

If you don’t turn your back away from the action, but do a peeping-Tom act, double slit notwithstanding, the detector screen and therefore you will detect a particle (quasi-blob) pattern behind each slit.

The two very disturbing facets are that a photon, etc. displays ‘awareness’, and ‘free will’, as well as exhibiting the ability to travel backwards in time. Photons, etc. not only ‘know’ before-the-fact whether or not both slits are open (two open slits equals wave behavior); or that one or the other slit is open (either/or equals particle behavior), but also whether or not someone is peeking. If both holes (slits) are open and nobody is peeking we end up having wave interference behavior; if someone is peeking even if both holes (slits) are open, we get particle quasi-blob behavior. That means the photons, etc. ‘know’ (how is that possible?) and adjust and exercise their ‘free will’ (how is that possible?) accordingly.

* But wait, there’s more! How does an electron ‘decide’ to emit a photon and thus drop to a lower energy level (and where the hell is the electron anyway while between energy levels). That an electron will drop to a lower energy level by emitting a photon for absolutely no reason at all is strange given that an electron will jump to a higher energy level by absorbing a photon’s worth of energy. There’s no causality in the downward direction; there’s causality in the upwards direction. That’s nuts! 

* And how do the constituents of an unstable (radioactive) nucleus ‘know’ when it is their turn to go poof in order to maintain that precise mathematical half-life relationship of whatever substance they represent (i.e. – uranium, radium, technetium, etc.).

* Quantum Tunneling: Apparently, when faced with an energy barrier, particles that lack sufficient energy to surmount the barrier in classical physics, can ‘tunnel’ past the barrier and come out the other side. Now the upshot of that is that this tunneling happens instantaneously. The particle is on the left hand side of the barrier then immediately tunnels and appears on the right hand side of the barrier – instantaneously. Now that implies a velocity faster than the speed of light, which is a no-no. Strike one. Quantum tunneling also apparently happens for no reason at all. It just happens. Strike two. But the real question is, how does a particle ‘decide’ to tunnel at all? Not all particles will tunnel when trapped behind an energy barrier. Strike three. Something is screwy somewhere.

* And then there’s that pane in the glass.  You have one light source. You have one normal everyday clear and clean pane of glass. Some of the light (photons) from the light source will pass clear through the clear glass, but some of those identical photons will reflect off the clear surface of the pane of glass. One set of circumstances yields two differing but simultaneous outcomes. That violates cause-and-effect. That’s crazy, but it happens as you can verify for yourself. So how does a light photon ‘decide’ whether to pass through or reflect off of the pane of glass? Alternatively, how does a radio photon ‘decide’ whether or not to pass through your brick walls and enter your radio, or reflect off of your brick wall and thus fail to contribute to the strength of your radio’s broadcast transmission? 

Conclusion:

To his dying day, Einstein insisted that there were hidden variables that would, when discovered account for all these various quantum anomalies – quantum magic. Those hidden variables would ultimately unite quantum physics with classical physics. Unfortunately for Einstein, experiments have since ‘proved’ that there are no hidden variables of the type Einstein had in mind. That’s because IMHO the hidden variable, which Einstein couldn’t have envisioned in even his wildest imagination, is a Supreme Programmer who creates our Simulated (Virtual Reality) Universe. 

What Is the Simulated (Virtual Reality) Universe Hypothesis? #

The human species, especially since the proliferation of the computer and associated technologies, have created thousands of simulated landscapes and virtual beings, from the humble Microsoft office assistant to pilot training simulators to video games that cater to all types of interests and age groups. Entire movies are now computer generated simulations – no actual on-location travel required; no humans need apply in hopes of earning an eventual Oscar for best actor. In view of the explosion of simulation technologies, and it’s only going to increase and get ever more realistic than it already is, the question has arisen, if we can create virtual worlds, might not we in turn be virtual beings ‘living’ in a simulated landscape programmed for some purpose or other, by other beings which might be futuristic humans recreating their past history, or ET’s video game version of “The Life and Times on the Third Rock in the Sol Planetary System”. It’s a best seller on Krypton! Though once just sci-fi speculation, that profound idea that we don’t really exist as flesh-and-blood is now taken very seriously indeed.

Now either you’ve got to believe we exist in The Twilight Zone No. One where denizens of the micro world have an ‘awareness’ of their surroundings and possess some degree of ‘free will’ to react to and within those surroundings, OR you believe we live in The Twilight Zone No. Two where said denizens of the micro world are programmed by higher authority (which I’ll just call the Supreme Programmer) to behave in the way we see and measure them behave.

Either you have to accept that the fields, forces and particles that collectively make up the Standard Model of Particle (nee Quantum) Physics have ‘free will’ and thus are somehow ‘alive’ and ‘animated’ in some sense (although their ‘free will’ comes with some restrictions just like your free will comes with restrictions as noted above – you can’t commit suicide by going back in time and killing your younger self or hold your breath underwater for three straight hours), OR  else it is all programming software which implies an intelligence (that Supreme Programmer) somewhere on up the line.

Okay, having had my rant, now you may all now call those nice young men in their clean white coats to come and take me away, ha-ha, he-he, to the funny farm!

# What I’m driving at here is the hypothesis (not original to me by the way) that we ‘live’ in a Simulated Universe as virtual reality. Interested parties might like to have a look-see at http://www.simulation-argument.com/

Further reading:

Maier, Bruce; Reality is Virtual or Why the Universe is the Way it is; Infinity Publishing; west Conshohocken, PA; 2010:

And the related website: http://www.realityisvirtual.com


Saturday, January 4, 2014

Quantum Physics and Virtual Reality: Part One

Most physicists don’t have much of a philosophical streak and they don’t tend to ask what they study all means. Philosophizing doesn’t pay their mortgage. Physics works, so they just go with the flow; they just shut up and calculate. Most philosophers on the other hand don’t usually have the technical education and background to wax lyrical and come to terms with modern physics. Whether physicists or philosophers, they don’t tend to advertise themselves too far out of their establishment’s standard model box. It’s not usually considered a wise career move, especially if you’re on the academic road upwards and tenure. As for myself, I have no academic career to damage or destroy, so I’m going to combine physics and philosophy and think way, way, way outside of the standard model box. It’s going to be quantum (particle) physics ‘explained’ by appeal to the Simulated (Virtual reality) Universe scenario. If I’m right, the Nobel Prize committee knows where to find me! 

There are many anomalies from the macro-world that can be ‘explained’ by resorting to a Simulated [Virtual Reality] Universe scenario, from statues that walk (Easter Island) to the concepts of an afterlife to those feelings of déjà vu to recollections of previous lives to crop ‘circles’ to ghosts, and so on and so forth. However, most of these anomalies can be classified as belonging to the paranormal or as a pseudoscience and dismissed. Not so easily dismissed are anomalies from hardcore particle (quantum) physics, the most experimentally verified science every known and responsible in gismos and gadgets for over one-third of the world’s economy. Despite all the runs on the board, points of view on the subject of Quantum Mechanics tend to be along the lines of…

Albert Einstein: God does not throw dice.

Niels Bohr: Anyone who is not shocked by the [quantum] theory hasn’t understood it.

Richard Feynman: Nobody understands quantum physics.

And that’s comments by noted quantum physicists.

However, the key to reality* in general, including yours in particular, lies in the basics (i.e. – the Standard Model of Particle [Quantum] Physics) and how it builds from the ground up. That reality includes those anomalies and how they can be explained. It’s time to think the unthinkable!

# CAUSALITY

You tend to associate lack of causality, on the macro scale, with free will. What you decide to have for dinner tonight has no prior cause, just your spur-of-the-moment whim. It’s all free will and free will alone, pure and simple.

However, on the micro scale of fields and forces and particles, you often find they also do whatever they damn well please – no causality need apply. A perfect example is radioactivity. There’s no apparent cause why one unstable nucleus goes poof and an identical clone living next door doesn’t. In fact if something like radioactivity happens for no apparent reason at all, yet that happening follows one precise mathematical relationship (one out of numerous theoretical possibilities) then that surely implies some sort of intelligent manipulation behind the scenes. The Virtual Reality writing is on the wall for all to see.

Either you have to accept that the fields, forces and particles that collectively make up the Standard Model of Particle (nee Quantum) Physics have free will and thus are somehow ‘alive’ and ‘animated’ in some sense (although their free will comes with some restrictions just like your free will comes with restrictions – you can’t flap your arms and fly or hold your breath underwater for three straight hours), OR  else it is all programming software which implies an intelligence (a Supreme Programmer**) somewhere on up the line.

# THE PARTICLE THAT WAVES

Traditional wave-particle duality is according to one interpretation a complementary but either/or phenomenon. Sometimes light/particle experiments show results that prove a pure 100% wave phenomena is responsible; sometimes however other light/particle experiments show results that prove a pure 100% particles phenomena is the only possible interpretation. That doesn’t make a great deal of sense unless there is a higher power (a Supreme Programmer) pulling the strings – or programming the program.

# DOUBLE SLIT EXPERIMENTS

The late Nobel Prize winning quantum physicist, Richard Feynman, thought the Double Slit Experiment (and variations on the theme) was the heart and soul behind the anomaly that is Quantum Physics. It was the ultimate anomaly in a sea of anomalies that could not, in any shape, manner or form, be explained by any sort of, or resort to, classical physics available in the observable Universe. 

1 - If photons, electrons, Buckminsterfullerene molecules (Bucky-balls), etc. are fired in rapid succession at a single slit, with a detector (like say photographic film or a TV screen) behind the slit, then a quasi-blob of impacts are detected. Particles rule, okay!

2 - If photons, electrons, Bucky-balls, etc. are fired in rapid succession at a double slit, with a detector behind the dual slits, then a classic wave interference (constructive and destructive interference) pattern emerges. Waves rule, okay!

3 - If photons, electrons, Bucky-balls, etc. are fired one at a time, at a single slit, such that one photon, etc. completes the journey before the next one is fired off, again with a detector behind the slit, then a quasi-blob of impacts are ultimately detected. Particles rule, okay!

4 - If photons, electrons, Bucky-balls, etc. are fired one at a time at a double slit, such that one photon, etc. completes the journey before the next one is fired off, again with a detector behind the slits, then ultimately after enough firings, a classic wave interference (constructive and destructive) pattern emerges. Waves! However, that implies one photon, electron, Bucky-ball, etc. somehow manages to go through both slits at the same time and thus interferes with itself. That’s absurd. But you ain’t seen anything yet!

4A - The above assumes nobody (human observer or independent measuring device) is peeking and taking the slightest notice of what’s going on – the non-observing nobodies are just looking at the pattern on the detector screen after the fact; after the experiment has concluded. 

4B - However, if someone, human observer or independent measuring device, is peeking and taking absolute and total notice of what’s going on, and determining at the precise time of passage which of the two slits the lone photon, etc. is actually going through (on the grounds that one entity cannot pass through two doors at the same time) then the wave interference pattern doesn’t eventuate and you get a quasi-blob of particle hits on the detector behind each of the two slits. Somehow the photon, etc. is somehow ‘aware’ that it is being observed and changes it’s self-interfering behavior accordingly – keeping in mind that the very act of observing before-the-fact unobserved properties of a photon, etc. alters those properties after-the-fact, since you can’t observe something without mucking around with it.  

4C - What if someone, human observer or independent measuring device, peeks, but only after the photon, etc. has already passed through presumably, but absurdly, both slits and self-interfered with itself? That shouldn’t affect the ultimate wave outcome since it’s now too little to late for the photon, etc. to change its mind. Or so you would think. But again, irregardless, the wave interference pattern disappears even after the peeking is done after the photon, etc. has passed through both slits and self-interfered. The one very nasty and anomalous implication is that the photon, etc. has traveled back in time to just before, or when it was, initially emitted so as to now make the ‘correct’ choice and thus will pass through one and only one slit to correlate what it actually does with what is actually detected. 

5 - Summary: If you turn your back and don’t peek, and there’s a double slit available, the detector screen, and therefore you, will detect a wave pattern because the photon, etc. will pass through both slits and self-interfere.

If you don’t turn your back away from the action, but do a peeping-Tom act, double slit notwithstanding, the detector screen and therefore you will detect a particle (quasi-blob) pattern behind each slit.

The two very disturbing facets are that a photon, etc. displays awareness, and free will, as well as exhibiting the ability to travel backwards in time. Photons, etc. not only know before-the-fact whether or not both slits are open (two open slits equals wave behavior); or that one or the other slit is open (either/or equals particle behavior), but also whether or not someone is peeking. If both holes (slits) are open and nobody is peeking we end up having wave interference behavior; if someone is peeking even if both holes (slits) are open, we get particle quasi-blob behavior. That means the photons, etc. know (how is that possible?) and adjust and exercise their free will (how is that possible?) accordingly.

6 – Conclusion: Now either you’ve got to believe we exist in The Twilight Zone #One where denizens of the micro world have an awareness of their surroundings and possess some degree of free will to react to and within those surroundings, OR you believe we live in The Twilight Zone #Two where said denizens of the micro world are programmed by higher authority** to behave in the way we see and measure them behave.

# MISSING IN ACTION

An electron can have this amount of energy corresponding to this ‘orbit’ (around an atomic nucleus) or that energy level corresponding to a different ‘orbit’ or this other energy level corresponding to a third possible ‘orbit’, etc. but not any energy level (and thus ‘orbit’) in-between (since energy comes in single indivisible quantum packets). Energy thus is a discontinuous phenomenon; just like you can have coins in multiples of five cents (I’m talking Australia here) like five cents, ten cents, fifteen cents, etc. You cannot have a coinage value of seven cents or of nine-point-three cents.

Here’s the rub. When an electron gains or loses energy, it rises or drops it’s ‘orbit’. But where the hell is it when it is rising, or falling between allowable ‘orbits’? Is it in The Twilight Zone or in another dimension or in Wonderland keeping Alice company? Being in-between allowable ‘orbits’ equates to having a forbidden energy level that would correspond to that in-between state. It would be like having a six, then seven, then eight, and then a nine cent coin as you increased the value of your pocket change from five cents to ten cents.

A similar situation could be had for the anomaly known as quantum tunneling. A particle is here on one side of a barrier, then it is there on the other side of the barrier – instantaneously – never to be found in-between.

Of course virtual reality software could easily have our electron disappear and reappear as it quantum jumped from one allowable ‘orbit’ to another allowable ‘orbit’ or as it tunneled over, around or through the barrier.

*It is impossible to know the absolute really real nature of reality since we cannot know the properties of the micro world without measuring/observing them and the act of measuring/observing affects, even distorts, those properties. But, the measuring device is unbiased and independent measurements yield identical results so the disturbances, if any, are at least consistent. Further, theoretical predictions about the properties and reality of potential fundamental particles have all been realized. The predictions that there had to be neutrinos, antimatter, quarks, the particles that convey the weak nuclear force, even the Higgs Boson have all come to pass, so really real reality can’t differ all that much from what we observe and measure. 

**Not by any means of necessity a deity! A real deity wouldn’t stuff things up and give us a Universe that has all the hallmarks that enable me to say that something is screwy somewhere!

To be continued…


Saturday, November 9, 2013

The Quantum Realm: Part Two

Now the really interesting thing about quantum physics isn’t so much the physics but the philosophy behind it all. Why is it so? What does it mean? That these philosophical issues matter and should be of interest is because you, the macro reader, is made up entirely – from the ground up – out of the residents of the realm of the micro, the inhabitants of the realm of the quantum.

Continued from yesterday’s blog…

As a review, with commentary, these are my takes on quantum strangeness:

Case Study #1 deals with that double slit experiment. IMHO photons fired one at a time at the double slit should not form a classic wave interference pattern with or without slit detectors in place. The concept of superposition belongs in “The Twilight Zone”, though apparently, so the scenario goes, what’s emitted is a particle; what’s detected is a particle; but the flight or pathway in-between is a wave-of-probability. It’s the slit detector that changes wave-of-probability into location, but that exact location must have existed even had the detector (our stand-in observer) not been in place. How does that explain the one photon at a time interfering with itself and causing that classic wave interference pattern? It doesn’t, but it’s a better bet than trying to come to terms with the idea of a thing being in two places at the same time.

Case Study #2, dealing with entanglement, well let’s just say that a particle on one side of the Universe should be independent of the fate of a particle on the opposite side of the Universe. More superposition equals more of “The Twilight Zone”.

Case Study #3: There needs to be a bona fide causality inspired reason why an electron gives away a photon and drops to a lower energy level. It’s not a whim thing. Maybe it’s another photon bumping into the electron and discharging the absorbed photon, maybe not, but it’s not a whim thing.

Case Study #4: Neutrinos should not endlessly change their clothes on route. The fact that they do contributed to some serious reflection that the core of our Sun had actually shut down. Scientists when looking for electron-neutrinos emitted by the Sun’s solar furnace didn’t see enough of them and thought the worst. It wasn’t until much later that they realised they had missed all those electron-neutrinos that the Sun had actually given off but which had changed their attire between the Sun and the Earth.

Case Study #5 notes that if you are made of matter, it would not be a good idea to shake hands with your antimatter twin self! But why matter and antimatter should go poof at all is a bit strange. An electron has a negative charge and its antimatter twin has a positive charge (hence the name positron). They go poof upon contact. But a proton has a positive charge equal and opposite to that of an electron and they don’t go poof when brought into contact so there’s more than just opposite charges annihilating each other at work here obviously. There’s no question that chemical reactions can give off energy, but total annihilation – wow. 

Case Study #6: Quantum Tunnelling should happen for a reason – it doesn’t. Quantum Tunnelling shouldn’t happen instantaneously since that violates the cosmic speed limit – the speed of light. The fact that in the micro world, barriers, well ain’t, makes all human inmates wish they were subatomic particles! 

The overall image that keeps springing to mind is all those Hollywood special effects. They would be an excellent explanation for all of the above weirdness. Think about it!

Finally, we should also note that most of the above examples or case histories involve quantum probability, uncertainty, indeterminism, etc. with respect or relative to the observer which could be you or me.

Case Study #1 suggests that photons (or electrons or any other fundamental particle) are in a superposition of state, which suggests that they can be apparently in two (or more) locations at the same time, and it’s only based on probability as to exactly where that location is. But it is in just one location as the addition of actual slit detectors verifies. So, the key point is that the photon or electron or whatever is 100% at a specific set of coordinates even if the double slit experiment suggests that the photon or electron or whatever is smeared out over a wide ranging area and only probably here or probably there.  So probability really bites the dust since location (one slit or the other) is confirmed by observation – there’s location, location, location; not probable, probable, probable!

In Case Study #2 we have more about that superposition of state whereby a particle may actually be a particle or an antiparticle (probability is 50/50) or spin up or spin down (probability 50/50). But you know, and I know, that in reality, one particle IS a particle (probability 100%) and the other IS an antiparticle (probability 100%) or one particle IS spin up (100% probability) and the other IS spin down (100% probability). There is no indeterminacy even if there is no observer, there is only determinacy, positive actuality, whether or not one or the other is observed. There is no across the universe communication. There is no ‘spooky action at a distance’. There is no probability involved other than 100% probability, otherwise known as a sure thing.

In Case Study #3 we have an electron that absorbs a photon’s energy and thus quantum jumps to a higher energy level. It then becomes a matter of probability as to when that electron emits that photon and jumps back down to a lower energy level. But, as in the case of radioactive decay, the odds are 100% that it will happen. Probability need not apply here. Probability is not applicable. The key concept here is again, ‘sooner or later’.

In Case Study #4, we might not know why the neutrino changes clothes, or exactly when and under what circumstances, so, as far as we are concerned it’s all boiled down to statistical probability what clothes any particular neutrino will be wearing when detected. However, there’s no doubt in my mind that causality is operating and that it’s 100% certain that the neutrino is wearing the clothes that causality has dictated. There’s no probability involved, only the probability that we’re probably pretty dumb for not figuring out why.   

Finally, in Case Study #5 somehow particles and antiparticles seemingly ‘know’ when they meet and greet whether to go poof or not go poof. The mystery is how they ‘know’. But it’s total certainty one way or the other and the observer has no relevance or say in the matter.

Case Study #6: Quantum Tunnelling, as already noted, happens for no reason at all. It’s responsible for radioactive decay which happens for no apparent reason at all. There is no way, rhyme or reason that enables one to predict when a quantum tunnelling event will transpire. It’s all probability. Either that, or a subatomic particle has a free will mind of its own and the knowledge and the ability of a Harry Houdini.

I have one other observation while on the issue of causality and probability if you please. If something quantum happens for no reason at all (i.e. – unstable subatomic nuclei goes poof) why doesn’t everything micro happen for no reason at all. Or, if some quantum happenings are just probabilities, why aren’t all micro happenings probabilities. Now IMHO if 99.999% of all physical effects can be traced back to one or more causes, it’s pretty safe to suggest, even conclude if you’re a betting person, that 100% of all physical can be traced back to one or more causes, even if those causes remain as yet unknown.

Lastly, consider and reconsider the quantum mantra: Anything that isn’t forbidden is compulsory; anything that can happen will happen. Does that sound like a probability statement to you?

I suggest this puts the kibosh on quantum physics being steeped in probability. There is no probability once you eliminate the observer and the observer’s fixation on either where things are; where something is, or whether something is or is not going to happen, and when something is going to happen. Before there were observers, things were somewhere, fixed and absolute, things did their thing without any guesswork or decision-making involved, and things happened sooner or later with absolute certainty.


Friday, November 8, 2013

The Quantum Realm: Part One


Now the really interesting thing about quantum physics isn’t so much the physics but the philosophy behind it all. Why is it so? What does it mean? That these philosophical issues matter and should be of interest is because you, the macro reader, is made up entirely – from the ground up – out of the residents of the realm of the micro, the inhabitants of the realm of the quantum.

If you take quantum physics to its logical conclusion, you can only deduce that those residents of the quantum realm, those elementary particles, have some very strange properties bordering  on self-awareness, consciousness, quasi-free will, a sort of ‘mind’ of their own but programmed with the social mores of quantum-land. They have the ability to ‘know’ things about their external world and their relationship to that. They can make decisions with respect to those relationships and act accordingly within their programming. They are not totally unresponsive and inert little billiard balls.

I’m also aware that such an assertion crosses the boundary between my being rational and being irrational. I mean how could an electron for example ‘know’ anything and make decisions? Such a proposition makes alien abductions, the Loch Ness Monster and the realm of astrology seem downright normal and acceptable and within the realm of conventional logic! But there is experimental evidence and observations to back this up.  

Case Study #1 – The Double Slit Experiment: Take the infamous double slit experiment (referenced in any and all tomes on quantum physics). Send a stream (lots and lots and lots) of photons at two parallel slits that have a target board of sorts behind them that show where the photons land after they pass through the dual slits. The photons pass through both slits and form on the target board a classic wave interference pattern, thereby showing that electromagnetic radiation, in this case visible light, is a wave. So far; so good. Now fire one light photon at a time at the dual slits, such that one photon will pass through the slits and reach the target board before the next photon is released. What you get – wait for it – is a classic wave interference pattern! That’s ridiculous. It’s as if one photon passes both slits at the same time and interferes with itself. That’s very funny peculiar, not funny ha-ha. In fact, it’s straight out of the “Twilight Zone” again. But wait, it gets worse. Now rerun the one photon at a time experiment but set up a detection device at each slit in order to determine if the photon goes through just one slit or through both. What happens is that the lone photons, fired one at a time, is indeed detected going through one slit or the other slit but not both simultaneously and thus, as you would expect, the classic wave interference pattern vanishes to be replaced with two separate and apart lines on the target board. That’s totally nuts since without detectors at the slits you get that classic wave interference pattern; with detectors, no such pattern. The question is, how did the photon ‘know’ the detectors were there and thus change their behaviour?

Case Study #2 – Entanglement: In the double slit experiment where one photon went through both slits simultaneously, the photon was said to be in a state of superposition – it could be in two places at the same time. In this new study we have two particles with a common origin, linked in some way, and released together out into the wilderness, sort of like Hansel and Gretel. Unlike the fairy tale, the two particles fly off in differing directions. So far; so good. The particles are not quite identical, just like Hansel and Gretel are not quite identical, but complementary, as one particle might be the antiparticle of the other or one is either spin up or spin down and the other is either spin down o spin up. The two particles are again considered to be in a state of superposition – each is simultaneously a particle and its antiparticle; or both are in a state of spin up and spin down. In other words, as in the case of the double slit experiment, there is doubt about who’s who and what’s what until a detector is put into place. I this example both particles fly off until they are on opposite sides of the Universe. Then, a detector is put into position in the pathway of one of the pair (i.e. – someone peeks). When someone peeked (i.e. – the detector detected) as in the double slit experiment, the photon was required to go into an either/or state. Ditto here. If the particle turns out to be Hansel, you know the particle on the opposite side of the Universe must be Gretel. Or, if one particle is observed to be an antiparticle, or say spin up, its partner clear across the Universe instantaneously must cease its superposition of state and become a particle or solidify into a spin down state. That one particle across the Universe somehow ‘knows’ that the superposition of state jig is up since its counterpart has been caught in the act (i.e. – observed or detected). Einstein had a phrase for this. He called it “spooky action at a distance”. Einstein wasn’t happy since this instantaneous communication implied superluminal speeds, faster than the speed of light, which his Special Theory of Relativity gave the thumbs down to. Now apparently, if I’m to understand things correctly, it’s noted that restrictions on the speed of light as the ultimate cosmic speed limit only applies if actual information is being transmitted. Pure gibberish can be transmitted instantaneously and ‘communication’ between two entangled particles isn’t actually information. How the cosmos ‘knows’ whether or not something is, or is not, bona fide information and thus employs photons travelling at the speed of light, or gibberish and thus allows instantaneous ‘communication’, is, IMHO gibberish! The whole issue is resolved if you just eliminate the concept of superposition of state. Something cannot both be and not be at the same time in the same place.

Case Study #3 – Electron Energy Levels: We are aware from elementary chemistry class that there is a cloud of electrons that surround the nucleus (protons plus neutrons) of atoms. Nucleus plus electrons equal whole atoms. The electrons only exist in specific quantified energy states. If they didn’t, they’d collapse and crash into the nucleus and that would be the end of chemistry as we know it! An electron can absorb a unit (or a quanta) of energy, or maybe two (or more) units and jump up a notch or two or three, or give off a unit(s) of energy and drop down a notch or two or three (but never to zero and hit the nucleus). The energy is absorbed or emitted by the absorption or emission of photons. So here comes along a photon minding its own business and runs smack into an electron which gobbles it up and jumps into the next higher energy state. Okay, that makes sense, so far; so good. That’s an example of cause-and-effect. The issue arising is how and why does the electron release the photon from bondage at a later stage and drop back down a level in energy? There seems to be causality working in one direction (absorbing the photon) but not the other way around. So it almost appears as if the self-aware electron wills itself rid of the photon at some point in time and drops down into a more comfortable energy state. However, I gather that there’s a possible explanation in that another photon comes along, hits the electron, and knocks the first photon out thus dropping the electron to a lower energy state. Since nobody has ever witnessed a photon hitting an electron, I guess that’s all conjecture. Still, any natural explanation is better than none.

However there are many other instances apart from the scenario of an electron in ‘orbit’ where electron-photon intersections (absorption and emission) are described, most notably in those [Richard] Feynman diagrams known and loved by particle physicists everywhere. These diagrams illustrate the various electron-photon exchanges but lack explanation as to how photons are given off or escape from the electron’s clutches. It’s all rather mysterious, rather like radioactive decay. 

While on this subject, I should point out another anomaly. Electrons can have just-so quanta energy levels, like 1, 2 3, etc. but not in-between. Energy states of say 1.5 or 2.2 or 3.7 are not allowed. So, when an electron jumps up or down an energy level or two to another energy level, they must do so without going through the spatial intermediaries. First they are here; then they are there, but never in-between. That’s all closely related to the concept of quantum tunnelling where say you are on one side of a wall and then you are on the other side of the wall but you didn’t go through, up over, dig under, or go around the wall. You can’t do that, but elementary particles can. Neat trick that one.

Case Study #4 – Neutrinos: There are three types of neutrinos. There are electron-neutrinos; muon-neutrinos and tau-neutrinos (just like there are electrons, muons and tau particles). Neutrinos, and their antiparticle counterparts, are given off in numerous ways like in various nuclear reactions taking place in the hearts of stars, including our Sun. Billions of these neutrinos pass right through you (without harm) each second. So far; so good. What’s odd is that while in transit, each morphs or shape-shifts into the other neutrino forms and back again and forth and back and forth. It’s like one was in its birthday suit, one in casual wear and one in formal attire and on their journey always keep changing their attire. There doesn’t appear to be any causal reason for this, so perhaps this is what is known as neutrino free will!

Case Study #5 – Antimatter: We’re all aware of the concept of antimatter. Each fundamental particle has an equal but opposite counterpart called its antiparticle. The most common example is the electron and the anti-electron, otherwise known as the positron. We’re also aware that when a particle meets and greets its antiparticle you get a big ka-boom! The two will annihilate each other producing pure energy. But, and this is my understanding, it has to be a particle and its very own corresponding antiparticle. So an electron meets and greets a positron – ka-boom. And so if a proton and an anti-proton meet and greet – ka-boom. But if a proton and an anti-electron (positron) meet and greet – nothing happens because they are not equal and opposite though they are matter and antimatter. Ditto if an anti-proton and neutron meet and greet – nothing happens. The question arises, how do these various particles and antiparticles recognise friend from foe? When foes meet like the positron and the electron, its annihilation. When a positron meets a proton, it’s a friendly meet and greet. How do these particles ‘know’?

Case Study #6 - Quantum Tunnelling: Every now and again we just want to bust out of our day-to-day existence and escape to that greener grass on the other side of the fence. Alas, there’s usually some barrier, economic, geographical, language, cultural, etc. that prevents us from busting out. Wouldn’t it be nice if we could wave a magic wand and bust through whatever factor(s) is holding us back? Well, sadly to say, it’s not usually the case where we can. Lottery wins are few and far between, and even if money were no object, there are other considerations holding us back from that get-up-and-go. Subatomic particles also face barriers in their micro world, barriers of matter and energy, fields and forces, which prevent them from doing their thing. However, subatomic particles have sold their soul to the devil that inhabits quantum land and in exchange have been issued a get-out-of-jail card. It’s called quantum tunnelling and it suggests that subatomic particles can tunnel around, over or through any matter and energy, force or field, restriction. The interesting bit is that the tunnelling happens for no reason at all, involves absolutely no effort on the part of the tunneller, and it all happens instantaneously. So, an electron on one side of a brick wall can instantaneously find itself on the other side without any causality in operation. It’s like our Edgar Rice Burroughs hero John Carter who just wishes himself to Barsoom (i.e. – Mars) and there he is! Perhaps quantum tunnelling is the micro version of the macro wormhole!

In general I think you’d need to agree that there are some decidedly odd goings on here from lack of causality to tiny particles that seem to ‘know’ how to behave either when face-to-face with an observer, or in other either/or situations. Now the odds that these tiny particles actually have the ability to make decisions and exhibit free will divorced from causality, and to ‘know’ things that influence that decision making process is, well nearly infinity to one against. Yet, these anomalies exist and have been verified again and again. So, IMHO, the only other rational explanation is that there must be some sort of guiding power or force, some sort of as yet uncovered hidden variables, maybe programming of some sort, which is responsible. Exactly what that might be – well your guess is as good as mine.

To be continued.

Tuesday, September 25, 2012

A Unified Theory of Time Travel: Part Two

The work of Albert Einstein and the ideas of Stephen Hawking differ when it comes to the even theoretical possibilities of time travel to the past. However, both points of view can be accommodated by invoking the concept of parallel worlds. It’s a case then of having your time travel cake and eating it too but without fear of creating a paradox tummy ache.  

Continued from yesterday’s blog…

What’s to prevent those from a parallel universe meddling and altering our time stream? It’s not enough for them to have a Prime Directive against that – we all know Prime Directives are meant to be broken! So, it looks like Hawking’s Chronology Protection Conjecture must apply to those visitors from parallel universes to our Universe as well. I mean what difference does it make to your existence whether you travel back in time within your own universe and kill your mother before you were conceived, or some serial killer escaping from a parallel universe to our Universe who kills your mother before you were conceived – even though in the latter case there’s no paradox, you still wouldn’t have been conceived of here in anyone’s philosophy!

OK, so relativity allows time travel back in time, but only to parallel universes. The Hawking Chronology Protection Conjecture not only prevents time travel paradoxes in general, but it also prevents parallel universe time travellers meddling and altering our timeline; ditto we humans time travelling to someone else’s parallel universe. But how would the Hawking Chronology Protection Conjecture actually accomplish this? My best guess is that parallel universes aren’t in phase – they aren’t polarized or synchronized in-phase like a laser beam, or the light that passes through your polarized sunglasses – otherwise we’d have some rather hard evidence of them; certainly way more than we do now.

So, if we go to parallel universe B or those from parallel universe B visits us, we’ll, or they’d be respectively out of phase with respect to the universe they are now in. Translated, they, or we, could look, but not touch for all practical purposes. I say for all practical purposes as now and again what’s out of phase (high probability – the usual state of affairs) will sync into phase (that’s rare). But the in-phase times are so few and far between, and last for such a brief duration that it’s unlikely to result in any inadvertent or deliberate timeline alterations. That’s my rendering of the Hawking Chronology Protection Conjecture – he could well have other ways and means in mind.

So another way of putting this is that time travellers would be spectral or ghostlike in their host universe, and maybe that’s where our traditions of ghosts and other things that go bump in the night come from! This is much like the parallel universe ghost or shadow photons that are conjectured to explain some highly mysterious aspects or phenomena contained within the famous quantum double slit* experiment. Now an obvious question is how do all the parallel universe ghost photons get into our physics labs where double slit experiments are carried out? I mean there are no local macro Black Hole or wormhole exits present – are there? Yes in fact there are! Not a macro wormhole, but a micro wormhole – actually wormholes. Theoretically, micro wormholes should exist all around you. It’s just that they are at quantum levels – incredible tiny; way subatomic in size. And they exist for just nanoseconds before collapsing.  They are just part of the quantum foam** reality at super microscopic levels, a reality at the level where all things exhibit the quantum jitters or quantum fluctuations. Thus, every second of every day, everywhere, there are little quantum gateways – quantum sized wormholes connections between universes which quantum sized particles – like photons – can traverse! From the standpoint of the double slit experiment, it doesn’t matter whether the parallel universe’s ghost photons came from the past, future or present – just as long as they are, indeed, present!

Now you may think it would be easy to detect these ghostly photons. Just put a photon detector in a totally dark and sealed room. Well, not quite so easy. Some photons can pass through ‘solid’ matter. X-Ray photons anyone? Radio wave photons pass through the walls of your home. If you look at a bright light, you’ll still see light even if you close your eyes. So, your photon detector in your dark and sealed room could easily detect our local variety.

The ghostly bits aside, parallel universe time travelers (or even ordinary time travelers from within our Universe assuming Hawking is wrong)) might explain the sometimes uncanny, often incredible look-a-likes that we all seem to have. A long shot to be sure, but something interesting to ponder.

There’s still one more problem on the horizon. Just because a macro Black Hole or wormhole plunks you into a parallel universe (and of course you’ve got to be able to survive the trip itself which might be problematical), doesn’t mean you’re going to be with spitting distance of your ultimate destination(s) – say a parallel Earth(s). So, time travelers might also need more conventional transport – like Flying Saucers (okay, forget the saucers – like spaceships with fins and rocket motors). But then what’s really there to distinguish a visiting time traveler from a parallel universe from say a  run-of-the-mill extraterrestrial from within our own Universe? Maybe you could just put out the welcome mat for both options!

One final thought. Could there be a Clayton’s time travel? - Time travel without traveling in time? At the risk of making Einstein turn over in his grave; I’m going to propose a universal NOW across all universes. Now I know that NOW, when it comes to observers, is a relative thing. An observer in Martian orbit sees Mars’ NOW somewhat before you on Planet Earth sees the same Mars’ NOW because the speed of light is finite. And relative motions and velocities complicate what is NOW. But, I propose (a thought experiment remember) to instantaneously freeze-frame the entire collection of universes’ NOW. Everyone and everything everywhere comes to an instant standstill. Right! We now have a universal NOW that we can study at our leisure (the freeze doesn’t apply to you and me – we’re outside the space-time continuum).

Let’s focus on that subset of all parallel universes – all parallel Earths and time travel between them. Now there’s no reason to assume that all parallel Earths are identical in all aspects. Indeed, some parallel universes may not even contain a parallel Earth! There maybe some parallel Earths identical or so close to identical to our Planet Earth as makes no odds – abodes you’d feel right at home in. Other Earths would differ in various ways, some minor, some major. Still others might be really weird and alien, as in having evolved a dinosaur society, civilization and technology. There was no parallel asteroid impact 65 million years ago; thus no human beings around the traps 65 millions later.

Your subset of parallel Earths would show near infinite diversity in infinite combinations. I say ‘near’ because you can only stretch the term ‘Earth’ or ‘Earth-like’ so far and no farther, before it’s not Earth or Earth-like. A 100% oceanic world is not Earth. If a parallel ‘Earth’ has Venus-like temperatures, it is not Earth-like. If it has a density approaching that of a neutron star, it is not Earth-like. If it has no life on it, even though in all other respects it is a near carbon copy of our Earth, it is not Earth-like. 

Now it’s back to the NOW subset of parallel Earths and Earth-like abodes. There’s no reason to assume that evolutionary development; that evolutionary development rates would proceed in each and every case in an identical fashion. Some parallel Earths would still be in the dinosaur era (if they had dinosaurs of course). In some parallel Earths, cavemen and sabre tooth tigers rule. In others, it’s Biblical times, or Medieval times or the era when Britannia ruled the waves. Others in our absolute NOW, on yet other parallel Earths, or parallel earthlings, might have just invented the wireless or landed on their Moon (if they have one). On some parallel Earths it may already be what to us will be the 23rd or 24th Century with interstellar warp drive capabilities at hand – and even way beyond that. So, you could seemingly travel to the past and future while actually remaining in our NOW. You’ve travelled in time without really travelling in time, or, time travel without the paradoxes – but maybe that spoils all the intellectual fun of contemplating time travel in the first place!

*The problem solved here is how can you get a classic wave interference pattern behind two slits you fire photons through; even when you fire the photons at say a rate of one per hour? Who you gonna call – ghost photons of course to the rescue.

**Quantum foam – the world may look pretty smooth from a distance, but as you keep magnifying the finer details, the micro world gets ever so slightly bumpier. Close in some more and things get rougher still, until at quantum level everything is a seething cauldron of tumultuous activity. It’s like the sea that looks perfectly smooth and tranquil from Earth orbit, but at rowboat level, you’re terrified as that 50 foot wave comes crashing down on you.

Further recommended readings about time travel:

Gott, J. Richard; Time Travel in Einstein’s Universe: The Physical Possibilities of Travel Through Time; Phoenix, London; 2002:

Hawking, Stephen W. et al.; The Future of Spacetime; W.W. Norton and Company, N.Y.; 2002:

Randles, Jenny; Breaking the Time Barrier: The Race to Build the First Time Machine; Paraview Pocket Books, New York; 2005:

Toomey, David; The New Time Travelers: A Journey to the Frontiers of Physics; W.W. Norton & Company, New York; 2007:

Friday, August 10, 2012

Parallel Universes: Part One

Parallel universes, or alternative universes or mirror universes have had a long run of popularity in science fiction and science fantasy, in both print and visual formats. One need only look at an “Alice in Wonderland” or look no further than the “Star Trek” universe (our Universe in less than obvious disguise) to view the near endless plot variations that such parallel / alternative / mirror universes provide our heroes and heroines. Do they actually exist and do they explain anything?

There are apparently two theoretical counterparts in our real world, or in our physics. Firstly, there’s the idea that from the beginning, there’s an infinite number of parallel universes where all things that can happen, do happen. Our Universe is just one of that infinite set. In five of those universes, you 1) flip a coin – in one, it’s a heads you flip; in another, tails; in the third, the coin stands on edge! Or, in a fourth universe you decide not to flip a coin at all, or in universe #5 you decide to flip something else instead.

The other theoretical set of parallel universes is a set that ever increases, staring with just one. Universes split whenever an either/or choice is forced upon it, such that all results that can happen, happen. In this (our) Universe you decide not to flip a coin – but that decision results in a division, the universe splits and in that split, in the new universe, you do flip a coin. In that universe it comes up heads. But, that universe then splits into two and yet another universe where your flip has tails comes up. There’s also another universe where the coin lands on edge! There’s also a universe that originally splits off where you decide to flip something other than a coin. This is known as the ‘Many Worlds Interpretation’ theory, (which resulted out of a need to explain certain quantum phenomena). With every passing second, more and more universes branch off (actually trillions per second).

I’ve never been a fan of the Many Worlds Interpretation of all things quantum. That is, the universe keeps splitting each time it comes to a fork in the road. The question of where all the matter/energy comes from – created out of nothing apparently – I’ve yet to see addressed in the texts. But, many top notch scientists adopt it – perhaps as the least of all the evils certain quantum phenomena dish up. As to where they fit, all those extra universes, that’s not as much of a problem. A motel with an infinite number of rooms never has to put out a ‘no vacancy’ sign – if you get the analogy. Oh, the Many Worlds Interpretation also means that there’s no such thing as free will. You may think you have free will in deciding to wear your red dress instead of your green dress, but in the Many Worlds Interpretation, you do both – so no free will.

However, I myself go for the Copenhagen Interpretation* – when you come to a fork in the road, one and only one choice is made – the other possible choice(s) are never realized and ultimately never have any reality. But, if you start out from scratch with an infinite number of universes, or at least a vast number, then the issue of ‘where’ all the universes are is irrelevant, and the creation of all the stuff that makes them up is equally irrelevant. In the beginning, it was so!

You can have an infinite number of universes in an infinite amount of space. An analogy – there are an infinite number of whole numbers like 1, 2, 3, 4, 5, 6, etc. There’s also an infinite number of even numbers such as 2, 4, 6, 8, 10, 12, etc. Ditto an infinite number of odd numbers. Yet the infinite set of even numbers, plus the infinite number of odd numbers, equals the infinite set of whole numbers. Infinity + infinity = infinity! Or, if you like, think of your house (volume) with just one molecule (universe) in it. You’d agree there’s room for one hell of a lot more molecules (universes). If your house had infinite volume, then…

I had always assumed, and followed the assumptions of others infinitely more brilliant than I, that such theoretical constructions, such parallel / alternative / mirror universes, was forever beyond our actual reach – works of fiction aside of course. We could construct them as an intellectual exercise, but could never verify and understand the actual existence of these mental or thought experiments. That’s because these universes, if they exist, would not be part of our space-time continuum and thusly we could never interact with them.

But what if that assumption is wrong? What if parallel / alternative / mirror universes not only exist, but can and do interact with ours, and thereby give some additional credence to the adventures of our “Alice in Wonderland” and “Star Trek” characters, not to mention the reputations of those physicists who propose infinite universes or Many Worlds Interpretation theories. 

Micro & Macro Mysteries: Well, those assumptions just might now be put to the test. I’d love to be able to say I thought of this idea, even independently, it’s just that brilliant. Alas, I didn’t, and I’m kicking myself because it’s just so simple and elegant.  The credit for this goes to physicist David Deutsch, and for a fuller and better outline of his proposals, see his book cited below**. 

The basics are as follows and deals with the paradoxical and famous ‘double slit’ experiment with light – an experiment with photons.

If you shine a light (millions of photons worth) at a slit, you’ll get a blob of light on the surface behind the slit. No problems – the photon ‘bullets’ go through the slit and impact on the surface behind.

Now you shine the light (millions of photons) at two slits. Contrary to expectation, you don’t get two blobs of light – one opposite each slit – but a classic wave interference pattern of alternating light and dark areas on the surface behind. So photons aren’t ‘bullets’; light must be a wave.

Thus is demonstrated the classic wave-particle duality or paradox of light. Is light a continuous wave, or is it a collection of individual ‘bullet’ particles?

Instead of firing millions of photons at these slits at a go, redo the experiment by firing off photons one at a time – say one per hour. That can actually be done. If you fire the one per hour photons at a single slit, the picture that emerges over time is your blob of light behind the slit. Photons are behaving as ‘bullet’ particles as before.

Now, fire the photons – one per hour – at the two slits. Clearly, you’d expect two blobs of light to ultimately form on the (say photographically sensitive) surface that is behind each slit. Sometimes the single photon would go through one slit; sometimes the other. Alas, you still get a wave-like interference pattern! How can this be? What’s interfering in real time with the actual photons that you’re shooting off?

The only object capable of interfering with photons, to cause wave-like interference, an alternating light-dark pattern, is other photons. But there are no other photons in the vicinity if they are shot out at one per hour and your photon source is the only photon source!

The inescapable conclusion is that there must be other photons around that can’t be detected (seen). Call these photons virtual photons, or shadow photons or ghost photons. Where do they come from? The answer is from our parallel / alternative / mirror universes. There is therefore a form of weak interaction between universes.

How do they, parallel universe photons say, actually get here? Well, at the quantum level, all manner of virtual particles pop into and out of existence from what’s called the vacuum energy. At the extremely microscopic level, what’s often called the ‘quantum foam’, is a level seething with activity, including the popping into and out of existence of micro wormholes, wormholes that can connect one universe with another, even if only for nanoseconds. But, that’s enough to allow the transfer of micro objects, like photons, and electrons, etc. from one universe to another. It’s like seeing the ocean from space. It looks really smooth and tranquil. However, at rowboat level, there’s this twenty foot wave about to come crashing down on top of you.

To be continued…

*But with one very, very important caveat. The Copenhagen Interpretation of the quantum requires that Nature makes up Her mind when, and only when an observer or an observer’s measurement is made. Until then all is probability and nothing has reality or actual existence. The Moon has no reality unless someone is observing or measuring it! To me, observers are irrelevant – reality is reality, with or without observers. 

**Deutsch, David; The Fabric of Reality; Penguin Books, London; 1998: