On the Significance of Interferometric Revivals for the Fundamental Description of Gravity

2021/11/30 by Kirill Streltsov, Julen S. Pedernales, Martin B. Plenio
Computer Science · Physics and Astronomy · #Classical mechanics #Gravitation #Interferometry #Mechanical and Optical Resonators #Physics #Quantum #Quantum Information and Cryptography #Quantum Mechanics and Applications #Quantum gravity #Quantum mechanics #Theoretical physics #gr-qc #quant-ph

paper · pdf · doi:10.3390/universe8020058

published as Universe 2022, 8(2), 58 · v2: matches published version

openalex created_date 2021/11/22 · openalex publication_date 2022/01/18 · arxiv created 2022/03/15 · arxiv updated 2022/03/17 · openalex updated_date 2026/08/06

Abstract

We show that an interaction between a harmonic oscillator and a two-level test mass (TLTM) mediated by an LOCC channel produces a signature that in [D. Carney et al., PRX Quantum 2, 030330 (2021)] is claimed to be exclusively reserved for channels that can transmit quantum information. We provide an explicit example based on a measurement-and-feedback channel, explain where the proof of Carney et al. fails, discuss to what degree setups of this type can test the nature of the gravitational interaction and remark on some fundamental implications that an LOCC model of gravity may have in black hole physics.

Citations

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