The geometry of spacetime from quantum measurements

Autor:	T. Rick Perche, Eduardo Martín-Martínez
Jazyk:	angličtina
Rok vydání:	2021
Předmět:	High Energy Physics - Theory Quantum Physics High Energy Physics - Theory (hep-th) FOS: Physical sciences General Relativity and Quantum Cosmology (gr-qc) Quantum Physics (quant-ph) General Relativity and Quantum Cosmology
Popis:	We provide a setup by which one can recover the geometry of spacetime from local measurements of quantum particle detectors coupled to a quantum field. Concretely, we show how one can recover the field's correlation function from measurements on the detectors. Then, we are able to recover the invariant spacetime interval from the measurement outcomes, and hence reconstruct a notion of spacetime metric. This suggest that quantum particle detectors are the experimentally accessible devices that could replace the classical 'rulers' and 'clocks' of general relativity. 19 pages, 10 Figures, 2 Appendices. RevTeX 4.2. V3: added a picture illustrating the setup
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::cb0a27669abaf5577cc530327e62cfdc http://arxiv.org/abs/2111.12724 Zobrazit plný text záznamu