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Article Dans Une Revue Physical Review Letters Année : 2023

Locally Mediated Entanglement in Linearized Quantum Gravity

Marios Christodoulou
Andrea Di Biagio
Markus Aspelmeyer
  • Fonction : Auteur
Časlav Brukner
Carlo Rovelli
Richard Howl
  • Fonction : Auteur

Résumé

The current interest in laboratory detection of entanglement mediated by gravity was sparked by an information-theoretic argument: entanglement mediated by a local field certifies that the field is not classical. Previous derivations of the effect modeled gravity as instantaneous; here we derive it from linearized quantum general relativity while keeping Lorentz invariance explicit, using the path-integral formalism. In this framework, entanglement is clearly mediated by a quantum feature of the field. We also point out the possibility of observing “retarded” entanglement, which cannot be explained by an instantaneous interaction. This is a difficult experiment for gravity, but is plausible for the analogous electromagnetic case.
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Dates et versions

hal-03584494 , version 1 (02-02-2024)

Identifiants

Citer

Marios Christodoulou, Andrea Di Biagio, Markus Aspelmeyer, Časlav Brukner, Carlo Rovelli, et al.. Locally Mediated Entanglement in Linearized Quantum Gravity. Physical Review Letters, 2023, 130 (10), pp.100202. ⟨10.1103/PhysRevLett.130.100202⟩. ⟨hal-03584494⟩
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