Are Gravitons Always in a Definite Spin State?

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Discussion Overview

The discussion centers on the nature of gravitons and their spin states, particularly in relation to quantum measurement and the gravitational field. Participants explore whether gravitons are always in a definite spin state due to their interactions with gravity, invoking concepts from quantum mechanics and John Bell's work.

Discussion Character

  • Debate/contested
  • Conceptual clarification

Main Points Raised

  • Some participants propose that gravitons may always be in a definite spin state because they are constantly interacting with the gravitational field.
  • Others question whether the gravitational field can be considered an "observer" in the context of the Copenhagen interpretation of quantum mechanics.
  • A participant challenges the initial premise regarding measurement and spin states, asserting that the argument lacks validity.
  • Another participant seeks clarification on the purpose of Bell's experiments in relation to the discussion.

Areas of Agreement / Disagreement

Participants express disagreement regarding the interpretation of measurement in quantum mechanics and the implications for gravitons, with no consensus reached on the validity of the initial claims.

Contextual Notes

There are unresolved questions about the definitions of measurement and the role of the gravitational field in quantum mechanics, as well as the implications of Bell's experiments.

cragar
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As John Bell showed us a particle is not in a spin state until we measure it. So would a Graviton always be in a definite spin state because it would always be interacting with the gravitational field.
 
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Your just pointing to the usual problem of measurement of QM, is the gravitational field an "observer" in the sense of the Copenhagen interpretation of QM?
 
cragar said:
As John Bell showed us a particle is not in a spin state until we measure it.

Baloney. Since your premise is nonsense, there is no need to go further.

If there's something you don't understand, it's better to ask than to state something wrong.
 
ok then what is the purpose of Bell's experiments.
 
1. Bell didn't perform any experiments.
2. You're hijacking your own thread.
 

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