Trap-loss collisions of ultracold lithium atoms

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dc.citation.firstpageR890en_US
dc.citation.issueNumber2en_US
dc.citation.journalTitlePhysical Review Aen_US
dc.citation.lastpageR893en_US
dc.citation.volumeNumber51en_US
dc.contributor.authorRitchie, N.W.M.en_US
dc.contributor.authorAbraham, E.R.I.en_US
dc.contributor.authorXiao, Y.Y.en_US
dc.contributor.authorBradley, C.C.en_US
dc.contributor.authorHulet, R.G.en_US
dc.contributor.authorJulienne, P.S.en_US
dc.contributor.orgRice Quantum Instituteen_US
dc.date.accessioned2015-03-30T19:07:10Zen_US
dc.date.available2015-03-30T19:07:10Zen_US
dc.date.issued1995en_US
dc.description.abstractAccurate measurements are presented of the rate of trap-loss-producing collisions between ultracold magneto-optically trapped Li7 atoms for a range of trap laser intensities and frequencies. Intensities from near the atomic saturation intensity to well above it are investigated. At low intensities, fine-structure-changing collisions cause trap loss with a rate constant of ?10?10 cm3/s. At sufficiently high intensity, the trap can be deep enough to effectively freeze out the dominant fine-structure-changing collisions as a loss mechanism, enabling an accurate comparison of the radiative escape loss rate with theory. At the lowest intensities of this radiative escape regime, the measured loss rates compare favorably with those calculated using an optical Bloch equation theory and a three-dimensional model of trap depth. However, the intensity dependence of the measured rates does not show the saturation predicted by the optical Bloch equation theory. It is shown that reliable knowledge of trap depth is necessary to accurately compare experiment with theory.en_US
dc.identifier.citationRitchie, N.W.M., Abraham, E.R.I., Xiao, Y.Y., et al.. "Trap-loss collisions of ultracold lithium atoms." <i>Physical Review A,</i> 51, no. 2 (1995) American Physical Society: R890-R893. http://dx.doi.org/10.1103/PhysRevA.51.R890.en_US
dc.identifier.doihttp://dx.doi.org/10.1103/PhysRevA.51.R890en_US
dc.identifier.urihttps://hdl.handle.net/1911/79411en_US
dc.language.isoengen_US
dc.publisherAmerican Physical Societyen_US
dc.rightsArticle is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.en_US
dc.titleTrap-loss collisions of ultracold lithium atomsen_US
dc.typeJournal articleen_US
dc.type.dcmiTexten_US
dc.type.publicationpublisher versionen_US
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