Justification for no properties before measurement

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    Measurement Properties
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Discussion Overview

The discussion centers on the philosophical implications of the Copenhagen interpretation of quantum mechanics, specifically addressing the question of whether particles possess properties prior to measurement. Participants explore the justification for the claim that particles lack definite properties before they are observed, considering both theoretical and conceptual aspects.

Discussion Character

  • Debate/contested
  • Conceptual clarification
  • Exploratory

Main Points Raised

  • Some participants reference the Heisenberg Uncertainty Principle and Bell's Theorem as foundational to the argument that particles do not have definite properties before measurement.
  • Others suggest that while dynamic properties like position and momentum require measurement, intrinsic properties such as mass and charge may exist independently of observation.
  • One participant argues that a probability distribution for a particle's position can be interpreted as a property, though it does not imply the particle has a definite position until measured.
  • Another viewpoint emphasizes that the Copenhagen interpretation is agnostic about the existence of properties between measurements, framing measurement as a fundamental concept that contrasts with classical physics.
  • Concerns are raised about the implications of the 'no hidden variables' perspective, with a request for a strong counterargument to the idea that unmeasured properties simply reflect ignorance.

Areas of Agreement / Disagreement

Participants express differing views on the existence of properties prior to measurement, with no consensus reached on whether particles have intrinsic properties or if they are entirely dependent on measurement for their definition.

Contextual Notes

The discussion highlights the complexity of interpreting quantum mechanics and the philosophical implications of measurement, with participants acknowledging the limitations of current understanding and the dependence on interpretations of quantum theory.

  • #121
This has been good thread, but the OP's question has been answered and its drifting onto other things. Time to close it. Of course if people would like to discuss some of the other issues a new thread can always be started about those issues.

Thanks
Bill
 
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