Kim, O, Deb, P and Beige, A orcid.org/0000-0001-7230-4220 (2018) Cavity-mediated collective laser-cooling of a non-interacting atomic gas inside an asymmetric trap to very low temperatures. Journal of Modern Optics, 65 (5-6). pp. 693-705. ISSN 0950-0340
Abstract
In this paper, we identify a many-particle phonon expectation value ζ with the ability to induce collective dynamics in a non-interacting atomic gas inside an optical cavity. We then propose to utilise this expectation value to enhance the laser cooling of many atoms through a cyclic two-stage process which consists of cooling and displacement stages. During cooling stages, short laser pulses are applied. These use ζ as a resource and decrease the vibrational energy of the atomic gas by a fixed amount. Subsequent displacement stages use the asymmetry of the trapping potential to replenish the many-particle phonon expectation value ζ.. Alternating both stages of the cooling process is shown to transfer the atomic gas to a final temperature which vanishes in the infinitely-many particle limit.
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Copyright, Publisher and Additional Information: | (c) 2018, The Author(s). Published by Informa UK Limited, trading as Taylor & Francis Group. This is an Open Access article distributed under the terms of the Creative Commons Attribution License (https://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. | ||||||||
Keywords: | laser cooling, cavity QED, collective effects | ||||||||
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Institution: | The University of Leeds | ||||||||
Academic Units: | The University of Leeds > Faculty of Engineering & Physical Sciences (Leeds) > School of Physics and Astronomy (Leeds) > Theoretical Physics (Leeds) | ||||||||
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Depositing User: | Symplectic Publications | ||||||||
Date Deposited: | 12 Oct 2018 12:52 | ||||||||
Last Modified: | 12 Oct 2018 12:52 | ||||||||
Published Version: | https://www.tandfonline.com/doi/full/10.1080/09500... | ||||||||
Status: | Published | ||||||||
Publisher: | Taylor & Francis | ||||||||
Identification Number: | https://doi.org/10.1080/09500340.2018.1444800 |