If decoherence matters in 2 different observables

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    Decoherence observables
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Discussion Overview

The discussion revolves around the implications of decoherence in quantum mechanics, specifically regarding its effects on two distinct observables. Participants explore whether decoherence can be considered simultaneously for multiple observables and the role of measurement apparatus in this context.

Discussion Character

  • Debate/contested
  • Conceptual clarification
  • Technical explanation

Main Points Raised

  • One participant questions whether decoherence can matter for two distinct observables at the same time, suggesting that the measurement apparatus may need to be defined classically in such cases.
  • Another participant argues that there is nothing inherently special about multiple observables, stating that decoherence in one observable implies decoherence in another, especially if they are interdependent.
  • A different viewpoint raises a concern about the observable basis in cases where decoherence occurs in various observables that are not functions of one another.
  • One participant asserts that collapses are not necessary and suggests that if one prefers interpretations involving collapses, both observables must collapse, provided they commute.

Areas of Agreement / Disagreement

Participants express differing views on the relationship between decoherence and multiple observables, with no consensus reached on whether decoherence can be treated simultaneously for distinct observables or the necessity of collapses.

Contextual Notes

The discussion highlights the complexity of defining observable relationships and the assumptions underlying interpretations of quantum mechanics, particularly regarding the nature of decoherence and measurement.

StarsRuler
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¿Can´t matter that decoherence matters for 2 distinct observables simultaneously ¿ Maybe the measurement apparatus must been defined clasically in this case
 
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There is nothing special about multiple observables. You can even construct observables which directly depend on other observables, so decoherence in one has to imply decoherence in the other as well.

You have decoherence everywhere, all the time, happening in the world.
 
But in the case of decohere in various observables, not being one function of other/s, in what observable basis collapse??
 
You do not need collapses.
If you prefer interpretations with collapses: in both. Those observables have to be commuting to get this anyway.
 

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