Datta, Animesh and Miao, Haixing (2021) Signatures of the quantum nature of gravity in the differential motion of two masses. Quantum Science and Technology, 6 (4). 045014. doi:10.1088/2058-9565/ac1adf ISSN 2058-9565.

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Abstract

We show that a signature of the quantum nature of gravity is the quantum mechanical squeezing of the differential motion of two identical masses with respect to their common mode. This is because the gravitational interaction depends solely on the relative position of the two masses. In principle, this squeezing is equivalent to quantum entanglement between the masses. In practice, detecting the squeezing is more feasible than detecting the entanglement. To that end, we propose an optical interferometric scheme to falsify hypothetical models of gravity.

Item Type:	Journal Article
Subjects:	Q Science > QC Physics T Technology > TS Manufactures
Divisions:	Faculty of Science, Engineering and Medicine > Science > Physics
Library of Congress Subject Headings (LCSH):	Quantum gravity, Optomechanics , Quantum theory , Mass (Physics)
Journal or Publication Title:	Quantum Science and Technology
Publisher:	Institute of Physics Publishing Ltd.
ISSN:	2058-9565
Official Date:	19 August 2021
Dates:	Date Event 19 August 2021 Published 5 August 2021 Accepted
Volume:	6
Number:	4
Article Number:	045014
DOI:	10.1088/2058-9565/ac1adf
Status:	Peer Reviewed
Publication Status:	Published
Access rights to Published version:	Open Access (Creative Commons)
Date of first compliant deposit:	15 September 2021
Date of first compliant Open Access:	16 September 2021

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