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Experimental Realization of a Thermal Squeezed State of Levitated Optomechanics

Muddassar Rashid, Tommaso Tufarelli, James Bateman Orcid Logo, Jamie Vovrosh, David Hempston, M. S. Kim, Hendrik Ulbricht

Physical Review Letters, Volume: 117, Issue: 27

Swansea University Author: James Bateman Orcid Logo

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DOI (Published version): 10.1103/physrevlett.117.273601

Abstract

We experimentally squeeze the thermal motional state of an optically levitated nanosphere by fast switching between two trapping frequencies. The measured phase-space distribution of the center of mass of our particle shows the typical shape of a squeezed thermal state, from which we infer up to 2.7...

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Published in: Physical Review Letters
ISSN: 0031-9007 1079-7114
Published: American Physical Society (APS) 2016
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URI: https://cronfa.swan.ac.uk/Record/cronfa31701
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spelling 2020-07-08T13:26:43.8977828 v2 31701 2017-01-20 Experimental Realization of a Thermal Squeezed State of Levitated Optomechanics 3b46126aa511514414c6c42c9c6f0654 0000-0003-4885-2539 James Bateman James Bateman true false 2017-01-20 SPH We experimentally squeeze the thermal motional state of an optically levitated nanosphere by fast switching between two trapping frequencies. The measured phase-space distribution of the center of mass of our particle shows the typical shape of a squeezed thermal state, from which we infer up to 2.7 dB of squeezing along one motional direction. In these experiments the average thermal occupancy is high and, even after squeezing, the motional state remains in the remit of classical statistical mechanics. Nevertheless, we argue that the manipulation scheme described here could be used to achieve squeezing in the quantum regime if preceded by cooling of the levitated mechanical oscillator. Additionally, a higher degree of squeezing could, in principle, be achieved by repeating the frequency-switching protocol multiple times. Journal Article Physical Review Letters 117 27 American Physical Society (APS) 0031-9007 1079-7114 31 12 2016 2016-12-31 10.1103/physrevlett.117.273601 http://dx.doi.org/10.1103/physrevlett.117.273601 COLLEGE NANME Physics COLLEGE CODE SPH Swansea University 2020-07-08T13:26:43.8977828 2017-01-20T15:00:42.1376767 Faculty of Science and Engineering School of Biosciences, Geography and Physics - Physics Muddassar Rashid 1 Tommaso Tufarelli 2 James Bateman 0000-0003-4885-2539 3 Jamie Vovrosh 4 David Hempston 5 M. S. Kim 6 Hendrik Ulbricht 7 0031701-20012017150215.pdf rashid2016experimental.pdf 2017-01-20T15:02:15.1300000 Output 1163300 application/pdf Version of Record true 2017-01-20T00:00:00.0000000 true
title Experimental Realization of a Thermal Squeezed State of Levitated Optomechanics
spellingShingle Experimental Realization of a Thermal Squeezed State of Levitated Optomechanics
James Bateman
title_short Experimental Realization of a Thermal Squeezed State of Levitated Optomechanics
title_full Experimental Realization of a Thermal Squeezed State of Levitated Optomechanics
title_fullStr Experimental Realization of a Thermal Squeezed State of Levitated Optomechanics
title_full_unstemmed Experimental Realization of a Thermal Squeezed State of Levitated Optomechanics
title_sort Experimental Realization of a Thermal Squeezed State of Levitated Optomechanics
author_id_str_mv 3b46126aa511514414c6c42c9c6f0654
author_id_fullname_str_mv 3b46126aa511514414c6c42c9c6f0654_***_James Bateman
author James Bateman
author2 Muddassar Rashid
Tommaso Tufarelli
James Bateman
Jamie Vovrosh
David Hempston
M. S. Kim
Hendrik Ulbricht
format Journal article
container_title Physical Review Letters
container_volume 117
container_issue 27
publishDate 2016
institution Swansea University
issn 0031-9007
1079-7114
doi_str_mv 10.1103/physrevlett.117.273601
publisher American Physical Society (APS)
college_str Faculty of Science and Engineering
hierarchytype
hierarchy_top_id facultyofscienceandengineering
hierarchy_top_title Faculty of Science and Engineering
hierarchy_parent_id facultyofscienceandengineering
hierarchy_parent_title Faculty of Science and Engineering
department_str School of Biosciences, Geography and Physics - Physics{{{_:::_}}}Faculty of Science and Engineering{{{_:::_}}}School of Biosciences, Geography and Physics - Physics
url http://dx.doi.org/10.1103/physrevlett.117.273601
document_store_str 1
active_str 0
description We experimentally squeeze the thermal motional state of an optically levitated nanosphere by fast switching between two trapping frequencies. The measured phase-space distribution of the center of mass of our particle shows the typical shape of a squeezed thermal state, from which we infer up to 2.7 dB of squeezing along one motional direction. In these experiments the average thermal occupancy is high and, even after squeezing, the motional state remains in the remit of classical statistical mechanics. Nevertheless, we argue that the manipulation scheme described here could be used to achieve squeezing in the quantum regime if preceded by cooling of the levitated mechanical oscillator. Additionally, a higher degree of squeezing could, in principle, be achieved by repeating the frequency-switching protocol multiple times.
published_date 2016-12-31T03:38:42Z
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score 11.012678

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