Related papers: What is "quantum" about quantum gravity?

What is "quantum" about quantum gravity?

URL: http://arxiv.org/abs/2405.08192v1
Date: Mon, 13 May 2024 21:19:50 GMT
Title: What is "quantum" about quantum gravity?
Authors: Giorgio Torrieri,
Abstract summary: We argue that if both the equivalence principle and quantum mechanics continue to survive experimental tests, that this favors epistemic'' interpretations of quantum mechanics.
Score: 0.0
License: http://creativecommons.org/licenses/by/4.0/
Abstract: Assuming the validity of the equivalence principle in the quantum regime, we argue that one of the assumptions of the usual definition of quantum mechanics, namely separation between the ``classical'' detector and the ``quantum'' system, must be relaxed. We argue, therefore, that if both the equivalence principle and quantum mechanics continue to survive experimental tests, that this favors ``epistemic'' interpretations of quantum mechanics (where formalism is built around relations between observables) over ``ontic ones'' (assuming the reality of states and wavefunctions). In particular, we show that relational type interpretations can readily accomodate the equivalence principle via a minor modification of the assumptions used to justify the formalism. We qualitatively speculate what a full generally covariant quantum dynamics could look like, and comment on experimental investigations.

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