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Einstein’s time vs.quantum time

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Single clock in superposition/University of Vienna

Describing a paper in Nature Communications:

Time in general relativity

One of the counterintuitive predictions of Einstein’s general relativity is that gravity distorts the flow of time. The theory predicts that clocks tick slower near a massive body and tick faster the further they are away from the mass. This effect results in a so-called “twin paradox”: if one twin moves out to live at a higher altitude, he will age faster than the other twin who remains on the ground. This effect has been precisely verified in classical experiments, but not in conjunction with quantum effects, which is the aim of the newly proposed experiment.

Quantum interference and complementarity

The Viennese group of researchers wants to exploit the extraordinary possibility that a single quantum particle can lose the classical property of having a well-defined position, or as phrased in quantum mechanical terms: it can be in a “superposition.” This allows for wave-like effects, called interference, with a single particle. However, if the position of the particle is measured, or even if it can in principle be known, this effect is lost. In other words, it is not possible to observe interference and simultaneously know the position of the particle. Such a connection between information and interference is an example of quantum complementarity — a principle proposed by Niels Bohr. The experimental proposal now published in “Nature Communications” combines this principle with the “twin paradox” of general relativity.

Could be handy to pull this out, if you have to tell the boss you dunno what happened all that time you spent in the park, listening to the birds.

4 Replies to “Einstein’s time vs.quantum time

  1. 1
    bornagain77 says:

    If they succeed in conducting the experiment, the position of the particle will be found to be completely independent of any time and space constraints that General, and/or Special, Relativity might try to impose. As I’ve said before, quantum mechanics has looked at the equations of General, and Special, Relativity, turned up its nose and sniffed, sans LaPlace, “I HAVE NO NEED OF THAT HYPOTHESIS!!!” In fact, the position of the particle will depend completely on the position of the observer in the experiment and indeed on the observers position of centrality in the universe!.;

    “It was not possible to formulate the laws (of quantum theory) in a fully consistent way without reference to consciousness.” Eugene Wigner (1902 -1995) from his collection of essays “Symmetries and Reflections – Scientific Essays”; Eugene Wigner laid the foundation for the theory of symmetries in quantum mechanics, for which he received the Nobel Prize in Physics in 1963.

    Here is the key experiment that led Wigner to his Nobel Prize winning work on quantum symmetries:

    Eugene Wigner
    Excerpt: To express this basic experience in a more direct way: the world does not have a privileged center, there is no absolute rest, preferred direction, unique origin of calendar time, even left and right seem to be rather symmetric. The interference of electrons, photons, neutrons has indicated that the state of a particle can be described by a vector possessing a certain number of components. As the observer is replaced by another observer (working elsewhere, looking at a different direction, using another clock, perhaps being left-handed), the state of the very same particle is described by another vector, obtained from the previous vector by multiplying it with a matrix. This matrix transfers from one observer to another.
    http://www.reak.bme.hu/Wigner_.....io/wb1.htm

    i.e. In the experiment the ‘world’ (i.e. the universe) does not have a ‘privileged center’. Yet strangely, the conscious observer does exhibit a ‘privileged center’. This is since the ‘matrix’, which determines which vector will be used to describe the particle in the experiment, is ‘observer-centric’ in its origination! Thus explaining Wigner’s dramatic statement, “It was not possible to formulate the laws (of quantum theory) in a fully consistent way without reference to consciousness.”

    further notes:

    Wheeler’s Classic Delayed Choice Experiment:
    Excerpt: Now, for many billions of years the photon is in transit in region 3. Yet we can choose (many billions of years later) which experimental set up to employ – the single wide-focus, or the two narrowly focused instruments. We have chosen whether to know which side of the galaxy the photon passed by (by choosing whether to use the two-telescope set up or not, which are the instruments that would give us the information about which side of the galaxy the photon passed). We have delayed this choice until a time long after the particles “have passed by one side of the galaxy, or the other side of the galaxy, or both sides of the galaxy,” so to speak. Yet, it seems paradoxically that our later choice of whether to obtain this information determines which side of the galaxy the light passed, so to speak, billions of years ago. So it seems that time has nothing to do with effects of quantum mechanics. And, indeed, the original thought experiment was not based on any analysis of how particles evolve and behave over time – it was based on the mathematics. This is what the mathematics predicted for a result, and this is exactly the result obtained in the laboratory.
    http://www.bottomlayer.com/bot.....choice.htm

    Moreover, the audacity of quantum mechanics to defy the constraints of space-time does not stop there. There is now a experiment that says these predicted quantum effects to defy space-time constraints will NEVER be overturned!

    An experimental test of all theories with predictive power beyond quantum theory – May 2011
    Excerpt: Hence, we can immediately refute any already considered or yet-to-be-proposed alternative model with more predictive power than this (quantum theory).
    http://arxiv.org/abs/1105.0133

  2. 2
    bornagain77 says:

    As well, for the advantage of those who have not seen this before, I point out that a ‘Christian Perspective’ provides, by far, the best, ’empirically backed’, reconciliation of Quantum Mechanics and General Relativity:

    Centrality of Each Individual Observer In The Universe and Christ’s Very Plausible Reconciliation Of General Relativity and Quantum Mechanics
    https://docs.google.com/document/d/17SDgYPHPcrl1XX39EXhaQzk7M0zmANKdYIetpZ-WB5Y/edit?hl=en_US

  3. 3
    PaV says:

    I have my own views as to what makes the world run. The results of the proposed experiment will either confirm, or refute, my intuitions. I’m very much looking forward to the results.

  4. 4
    bornagain77 says:

    PaV, I would very much like to know what your intuition is.

    As for my contention that the space time of General Relativity will be found to ‘break down’ and submit to the ‘observer-centic’ predictions of Quantum mechanics, I point out that when a ‘hypothetical’ observer is allowed within equations of Relativity, to see what will happen as one approaches the speed of light, then even the equation of Relativity itself points out that space-time will ‘fold and collapse’ to form a tunnel shape around that hypothetical observer that was allowed in.;

    notes:

    In the first part of this following video, the ‘material’ 3-Dimensional ‘space-time’ world ‘folds and collapses’ into a tunnel shape around the direction of travel as a ‘hypothetical’ observer moves towards the ‘higher dimension’ of the speed of light (Of note: This following video which was made by two Australian University Physics Professors with a supercomputer).

    Traveling At The Speed Of Light – Optical Effects – video
    http://www.metacafe.com/watch/5733303/

    Here is the interactive website, with link to the relativistic math at the bottom of the page, related to the preceding video;

    Seeing Relativity
    http://www.anu.edu.au/Physics/Searle/

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