Fluid Tests Hint at Concrete Quantum Reality

Re:Fluid Tests Hint at Concrete Quantum Reality by dnautics on Monday June 30, 2014 @04:45PM (#7967591)

I was under the impression that Bohmian mechanics were known to be equivalent if and only if hidden variables were strictly non-local (in the case of the macrophysical observations, the "universe" can for a reasonable higher-order approximation be the limits of the chamber being observed).

IIRC, There is also an interesting 'alternative' relativity which has non-local effects and a universal frame of reference formulated by a physicist named Frank Tangherlini (I'll be interviewing him this month). It also has weird properties like anisotropy of the vacuum speed of light!!

Might be interesting if Bohmian and Tangherlini mechanics provided a better mathematical rapprochement of quantum mechanics with relativity than Copenhagen/Lorentz/Einstein

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Re:Fluid Tests Hint at Concrete Quantum Reality by pdonis on Monday June 30, 2014 @10:56PM (#7968956)

I was under the impression that Bohmian mechanics were known to be equivalent if and only if hidden variables were strictly non-local

Correct. The same is true of Bell's theorem; it shows that no local hidden variable theory can reproduce the predictions of standard quantum mechanics. It's true that the "local" part often gets left out in pop science treatments of Bell's theorem; but Bell himself was quite clear about it, and about the fact that Bohm's pilot wave theory is nonlocal. The article completely fails to mention this, which IMO is a huge omission.

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Re:Fluid Tests Hint at Concrete Quantum Reality by svedlin on Tuesday July 01, 2014 @01:17AM (#7969245)

An interesting response to the fluid experiments discussed in the article:

http://arxiv.org/abs/1405.0466

Comment on Y. Couder and E. Fort: "Single-Particle Diffraction and Interference at a Macroscopic Scale", Phys. Rev. Lett. (2006)

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Re:Fluid Tests Hint at Concrete Quantum Reality by jostylr on Monday June 30, 2014 @06:00PM (#7968002)

I have been contemplating Julian Barbour's work which has a frame of reference in it. This would make it natural as to what the "now" of Bohmian mechanics would be. That "now" is the mystery at the moment.

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