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|    sci.physics.research    |    Current physics research. (Moderated)    |    17,516 messages    |
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|    Message 15,516 of 17,516    |
|    Jos Bergervoet to SEKI    |
|    Re: Can We Believe in Modern Quantum The    |
|    08 Jan 17 10:27:58    |
      From: jos.bergervoet@xs4all.nl              On 1/6/2017 5:05 PM, SEKI wrote:       > On Friday, January 6, 2017 at 1:07:04 PM UTC+9, Rich L. wrote:        ...       >> I think your basic misconception is that the wave function IS the       >> particle. It is not.        [ .. ]       > I consider that the assumption that there exist extremely small       > elementary particles (regardless of whether point-like or string) in       > reality is false and is the root of quantum paradoxes such as       > instantaneous wave function collapse,              That seems reasonable. After all, the mathematics of QM       only describes the wavefunction, so why would we assume       anything else exists? All else is mythology!               ...       > I assume:       > - Though a quantum behaves as a wave, it maintains its oneness while it       > exists.              A wave remains a wave, you presumable mean.. But of course       QM describes how single-particle wave functions sometimes       evolve into two-particle and subsequently perhaps into       multi-particle wave functions. So you have to describe       reality at all times with the proper set of N-particle       wave functions, one for each N, as QFT basically is doing       in Fock space.              > - A free quantum carries its energy and momentum as a whole.              Why focus on a "quantum"? The quantum is just the difference       between two levels, or two states, in QM. The states are the       real entities! A "quantum" could in classical physics be       the difference in position between two point particles. That       is *not* the building block of reality in that theory! The       point particles themselves are.              > - A quantum can assume the character of a particle, which is extremely       > small, only momentarily.              Why do you believe it can? The mathematical description of       QM can of course describe a wave packet with a small size,       but that is probably not what you mean here. If the wave       is spread out, why do you believe it can suddenly be very       small? That sounds like the wave function collapse so here       you go back to the mythology!               ..       > In each quantum field, a kind of cohesive force like surface tension or       > some sort of cut-off mechanism is considered to be essential.              By whom is this considered to be essential? QM does not       describe any such cohesion. QM very clearly *denies* that       such a force exists. So this is considered essential only       by those who reject QM!              > [As an example, consider a photon traveling all the way from a far-away       > star. Without any cohesive force or some sort of cut-off mechanism,       > the quantum cannot but diffuse,              Exactly the description by QM. That is how reality is!       If you believe QM. (I had hope that you did, when you       wrote that you rejected small point particles!)              ...       > [According to the traditional interpretation of quantum physics, one       > may assume that, as soon as the photon is detected, the existence       > probability of the photon completely vanishes at all points including       > those millions or billions of light-years away.              That's the mythology again. QM in its mathematical       formulation never described such an effect.               ...       > You may feel that the above arguments are quite odd, though I suppose       > that my interpretation of quantum mechanics is leastwise better than       > that of Copenhagen, many worlds theories and so forth.              What you do is *not an interpretation, it is a rejection*       of QM (at least of QM as it is formulated now) because you       want to add a non-linear cohesive effect (which destroys       the unitary time-evolution which is at the heart of QM!)              But my question is why you want any change. Why can't you       accept that the wave function is reality? (Or at least the       best approximation of reality that we currently know?)              --       Jos              --- SoupGate-Win32 v1.05        * Origin: you cannot sedate... all the things you hate (1:229/2)    |
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