Questions about the de-Broglie Bohm interpretation

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Discussion Overview

The discussion revolves around the de-Broglie Bohm (dBB) interpretation of quantum mechanics, addressing various conceptual and technical questions related to its implications, such as the nature of the pilot wave, nonlocality, determinism, and comparisons with other interpretations like Copenhagen and Many-Worlds. The scope includes theoretical exploration and conceptual clarification.

Discussion Character

  • Exploratory
  • Technical explanation
  • Conceptual clarification
  • Debate/contested

Main Points Raised

  • Some participants question the nature of the pilot wave in dBB, asking how a non-material wave can control matter and expressing skepticism about the existence of high-dimensional spaces.
  • Concerns are raised about the impact of detectors on the double slit experiment, with participants seeking explanations for the loss of interference patterns when measurements are made.
  • Questions arise regarding the persistence of pilot waves after particle interactions, including whether there is one universal pilot wave or multiple waves for each particle.
  • Participants discuss the implications of nonlocality in dBB, questioning whether influences are instantaneous or could be time-delayed while still respecting the speed of light.
  • There is a discussion on the deterministic nature of dBB, with some asserting that the uncertainty principle does not imply inherent randomness, but rather reflects human limitations in measurement.
  • Some participants inquire about the rationale for preferring dBB over other interpretations, asking for experimental evidence or theoretical justifications supporting dBB.
  • One participant explores the possibility of alternative formulations of the guidance equation that do not rely on instantaneous positions, suggesting that such formulations could still yield deterministic outcomes.
  • Another participant expresses difficulty in understanding complex explanations and requests simpler, intuitive descriptions of the concepts discussed.

Areas of Agreement / Disagreement

The discussion features multiple competing views and remains unresolved on several key questions, particularly regarding the nature of the pilot wave, the implications of nonlocality, and the comparison of dBB with other interpretations of quantum mechanics.

Contextual Notes

Some limitations include the vague definitions of "matter," the dependence on interpretations of quantum mechanics, and the unresolved nature of certain mathematical aspects related to the guidance equation and nonlocality.

  • #31
Hm.. yes, but not in this thread. I did not remember any definite outcome :) of these discussions, they were quite fuzzy. That is why I was asking for some kind of a Summary.
 
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  • #32
Dmitry67 said:
Hm.. yes, but not in this thread. I did not remember any definite outcome :) of these discussions, they were quite fuzzy. That is why I was asking for some kind of a Summary.
OK!

For QCD and the scale problem, see
https://www.physicsforums.com/showpost.php?p=2303228&postcount=18

For the Unruh effect, it is decoherence (i.e. interaction with the environment made up of objective Minkowski particles) that explains why the basis of Rindler "particles" becomes a preferred basis when the environment (measuring apparatus) is accelerated. Thus, there is some objective creation of Minkowski particles, but it is due to acceleration of objective particles existing before the acceleration. More details can be found in
http://xxx.lanl.gov/abs/0904.2287
 

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