Dyson's View Of Wavefunction Collapse

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SUMMARY

The discussion centers on Freeman Dyson's perspective on the wavefunction collapse in quantum mechanics, emphasizing that the wavefunction is a description of probability rather than a physical entity. Participants express confusion over the necessity of the collapse concept, suggesting it complicates understanding rather than clarifying it. The conversation references Gleason's Theorem and the PBR theorem, questioning the nature of physical reality and the implications of observation in quantum mechanics. Ultimately, the dialogue highlights the ongoing debate regarding the interpretation of quantum mechanics and the role of the wavefunction.

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  • Understanding of quantum mechanics principles, particularly wavefunctions and their interpretations.
  • Familiarity with Gleason's Theorem and the PBR theorem in quantum theory.
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  • Awareness of the distinctions between different interpretations of quantum mechanics, such as the Copenhagen interpretation and many-worlds interpretation.
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  • Research the implications of Gleason's Theorem in quantum mechanics.
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Physicists, quantum mechanics students, and researchers interested in the philosophical implications of quantum theory and the ongoing debates surrounding wavefunction interpretation.

  • #91
Morbert said:
Wouldn't this require perfect resolution to be true? And perfect resolution would not be possible even in principle due to the Wigner-Araki-Yanase theorem.

Instead actual position measurements would be modeled with some POVM and yield a highly localized distribution.
Born's rule in all its textbook forms claim that measurements produce eigenvalues, and don't say anything about resolution. This shows that Born's rule is an idealization, but people talk as if it were a universal basic law. Real measurement is something quite complicated,
 
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