Coherent control and feedback cooling in a remotely coupled hybrid atom–optomechanical system

Cooling to the motional ground state is an important first step in the preparation of nonclassical states of mesoscopic mechanical oscillators. Light-mediated coupling to a remote atomic ensemble has been proposed as a method to reach the ground state for low frequency oscillators. The ground state...

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Main Authors: James S Bennett, Lars S Madsen, Mark Baker, Halina Rubinsztein-Dunlop, Warwick P Bowen
Format: Article
Language:English
Published: IOP Publishing 2014-01-01
Series:New Journal of Physics
Subjects:
Online Access:https://doi.org/10.1088/1367-2630/16/8/083036
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author James S Bennett
Lars S Madsen
Mark Baker
Halina Rubinsztein-Dunlop
Warwick P Bowen
author_facet James S Bennett
Lars S Madsen
Mark Baker
Halina Rubinsztein-Dunlop
Warwick P Bowen
author_sort James S Bennett
collection DOAJ
description Cooling to the motional ground state is an important first step in the preparation of nonclassical states of mesoscopic mechanical oscillators. Light-mediated coupling to a remote atomic ensemble has been proposed as a method to reach the ground state for low frequency oscillators. The ground state can also be reached using optical measurement followed by feedback control. Here we investigate the possibility of enhanced cooling by combining these two approaches. The combination, in general, outperforms either individual technique, though atomic ensemble-based cooling and feedback cooling each individually dominate over large regions of parameter space.
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spelling doaj.art-a1ed8afd23c04e269f399b088828f2d02023-08-08T11:30:16ZengIOP PublishingNew Journal of Physics1367-26302014-01-0116808303610.1088/1367-2630/16/8/083036Coherent control and feedback cooling in a remotely coupled hybrid atom–optomechanical systemJames S Bennett0Lars S Madsen1Mark Baker2Halina Rubinsztein-Dunlop3Warwick P Bowen4Australian Research Council Centre of Excellence for Engineered Quantum Systems (EQuS), The University of Queensland , St Lucia, QLD 4072, AustraliaAustralian Research Council Centre of Excellence for Engineered Quantum Systems (EQuS), The University of Queensland , St Lucia, QLD 4072, AustraliaAustralian Research Council Centre of Excellence for Engineered Quantum Systems (EQuS), The University of Queensland , St Lucia, QLD 4072, AustraliaAustralian Research Council Centre of Excellence for Engineered Quantum Systems (EQuS), The University of Queensland , St Lucia, QLD 4072, AustraliaAustralian Research Council Centre of Excellence for Engineered Quantum Systems (EQuS), The University of Queensland , St Lucia, QLD 4072, AustraliaCooling to the motional ground state is an important first step in the preparation of nonclassical states of mesoscopic mechanical oscillators. Light-mediated coupling to a remote atomic ensemble has been proposed as a method to reach the ground state for low frequency oscillators. The ground state can also be reached using optical measurement followed by feedback control. Here we investigate the possibility of enhanced cooling by combining these two approaches. The combination, in general, outperforms either individual technique, though atomic ensemble-based cooling and feedback cooling each individually dominate over large regions of parameter space.https://doi.org/10.1088/1367-2630/16/8/083036optomechanicshybrid systemssympathetic coolingfeedback cooling
spellingShingle James S Bennett
Lars S Madsen
Mark Baker
Halina Rubinsztein-Dunlop
Warwick P Bowen
Coherent control and feedback cooling in a remotely coupled hybrid atom–optomechanical system
New Journal of Physics
optomechanics
hybrid systems
sympathetic cooling
feedback cooling
title Coherent control and feedback cooling in a remotely coupled hybrid atom–optomechanical system
title_full Coherent control and feedback cooling in a remotely coupled hybrid atom–optomechanical system
title_fullStr Coherent control and feedback cooling in a remotely coupled hybrid atom–optomechanical system
title_full_unstemmed Coherent control and feedback cooling in a remotely coupled hybrid atom–optomechanical system
title_short Coherent control and feedback cooling in a remotely coupled hybrid atom–optomechanical system
title_sort coherent control and feedback cooling in a remotely coupled hybrid atom optomechanical system
topic optomechanics
hybrid systems
sympathetic cooling
feedback cooling
url https://doi.org/10.1088/1367-2630/16/8/083036
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AT halinarubinszteindunlop coherentcontrolandfeedbackcoolinginaremotelycoupledhybridatomoptomechanicalsystem
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