Can the PBR Theorem Prove the Reality of Quantum States?

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SUMMARY

The PBR theorem, first published by Pusey et al., establishes that quantum states are either physically real or merely statistical tools. This theorem asserts that if a quantum state corresponds to a real physical state, it must be independent of the observer, particularly for isolated systems. The discussion highlights the implications of the PBR theorem on interpretations of quantum mechanics, particularly strengthening the de-Broglie-Bohm theory against hidden variable theories. Critics argue that the theorem does not account for entangled systems, raising questions about its validity in broader contexts.

PREREQUISITES
  • Understanding of the PBR theorem and its implications in quantum mechanics.
  • Familiarity with the de-Broglie-Bohm theory (dBB) and its interpretations.
  • Knowledge of hidden variable theories (HVTs) and their criticisms.
  • Basic grasp of quantum entanglement and its effects on quantum states.
NEXT STEPS
  • Study the original PBR theorem paper by Pusey et al. for detailed assumptions and conclusions.
  • Explore the de-Broglie-Bohm theory to understand its stance on quantum states and hidden variables.
  • Investigate the implications of quantum entanglement on the PBR theorem and its assumptions.
  • Review literature on epistemic versus ontic interpretations of quantum states in quantum foundations research.
USEFUL FOR

Quantum physicists, researchers in quantum foundations, and students studying interpretations of quantum mechanics will benefit from this discussion.

  • #91
Demystifier said:
@fanieh you didn't tell us the author and title of the book you are referring to.

<Moderator's note: link removed>
 
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  • #92
That link is not an acceptable reference. Time to close the thread.
 
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