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.
Metadata
Item Type: | Article |
---|---|
Authors/Creators: |
|
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 |
Dates: |
|
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) |
Funding Information: | Funder Grant number EPSRC EP/E001807/1 EPSRC EP/E039863/1 EPSRC EP/H048901/1 |
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: | 10.1080/09500340.2018.1444800 |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:136797 |