Influence of cosmological expansion in local experiments. (3rd February 2022)

• Record Type: Journal Article
• Authors: Spengler, Felix; Belenchia, Alessio; Rätzel, Dennis; Braun, Daniel
• Is Part Of: Classical and quantum gravity. Volume 39:Number 5(2022)
• Publication Date: 2022-02-03
• Subjects: cosmological expansion -- redshift -- spacetime physics -- general relativity; Quantum gravity -- Periodicals; Gravitation -- Periodicals; Relativity (Physics) -- Periodicals; Space and time -- Periodicals; Periodicals; 521.1
• DOI: 10.1088/1361-6382/ac4954
• Languages: English
• ISSNs: 0264-9381

Abstract

Abstract: Whether the cosmological expansion can influence the local dynamics, below the galaxy clusters scale, has been the subject of intense investigations in the past three decades. In this work, we consider McVittie and Kottler spacetimes, embedding a spherical object in a FLRW spacetime. We calculate the influence of the cosmological expansion on the frequency shift of a resonator and estimate its effect on the exchange of light signals between local observers. In passing, we also clarify some of the statements made in the literature.