Phononic gravity gradiometry with Bose-Einstein condensates
Phononic gravity gradiometry with Bose-Einstein condensates
Gravity gradiometry with Bose-Einstein condensates (BECs) has reached
unprecedented precisions. The basis of this technique is the measurement
of differential forces by interference of single-atom wave functions. In
this article, we propose a gradiometry scheme where phonons, the
collective oscillations of a trapped BEC's atoms are used instead. We
show that our scheme could, in principle, enable high-precision
measurements of gravity gradients of bodies such as the Earth or small
spheres with masses down to the milligram scale. The fundamental error
bound of our gravity gradiometry scheme corresponds to a differential
force sensitivity in the nano-gal range per experimental realization on
the length scale of the BEC.
Quantum Physics
Bravo, Tupac
7f9c92af-bc61-4922-9ea6-3f0c03479861
Rätzel, Dennis
ab613c70-8628-405a-a01a-a19ec9fd8d86
Fuentes, Ivette
6281afeb-b1bc-44fc-824c-265b57be9794
Bravo, Tupac
7f9c92af-bc61-4922-9ea6-3f0c03479861
Rätzel, Dennis
ab613c70-8628-405a-a01a-a19ec9fd8d86
Fuentes, Ivette
6281afeb-b1bc-44fc-824c-265b57be9794
Bravo, Tupac, Rätzel, Dennis and Fuentes, Ivette
(2020)
Phononic gravity gradiometry with Bose-Einstein condensates.
arXiv.
(doi:10.48550/arXiv.2001.10104).
(Submitted)
Abstract
Gravity gradiometry with Bose-Einstein condensates (BECs) has reached
unprecedented precisions. The basis of this technique is the measurement
of differential forces by interference of single-atom wave functions. In
this article, we propose a gradiometry scheme where phonons, the
collective oscillations of a trapped BEC's atoms are used instead. We
show that our scheme could, in principle, enable high-precision
measurements of gravity gradients of bodies such as the Earth or small
spheres with masses down to the milligram scale. The fundamental error
bound of our gravity gradiometry scheme corresponds to a differential
force sensitivity in the nano-gal range per experimental realization on
the length scale of the BEC.
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Submitted date: 1 January 2020
Keywords:
Quantum Physics
Identifiers
Local EPrints ID: 480322
URI: http://eprints.soton.ac.uk/id/eprint/480322
ISSN: 2331-8422
PURE UUID: 38cada82-8b73-49ab-8d22-52cc0494cd4d
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Date deposited: 01 Aug 2023 17:20
Last modified: 17 Mar 2024 00:36
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Contributors
Author:
Tupac Bravo
Author:
Dennis Rätzel
Author:
Ivette Fuentes
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