Single-photon atomic cooling

dc.contributor.advisorRaizen, Mark G.en
dc.creatorPrice, Gabriel Noamen
dc.date.accessioned2011-03-21T18:51:46Zen
dc.date.available2011-03-21T18:51:46Zen
dc.date.issued2009-08en
dc.descriptiontexten
dc.description.abstractThis dissertation details the development and experimental implementation of single-photon atomic cooling. In this scheme atoms are transferred from a large-volume magnetic trap into a small-volume optical trap via a single spontaneous Raman transition that is driven near each atom's classical turning point. This arrangement removes nearly all of an atomic ensemble's kinetic energy in one dimension. This method does not rely on a transfer of momentum from photon to atom to cool. Rather, single-photon atomic cooling achieves a reduction in temperature and an increase in the phase-space density of an atomic ensemble by the direct reduction of the system's entropy. Presented here is the application of this technique to a sample of magnetically trapped ⁸⁷Rb. Transfer efficiencies between traps of up to 2.2% are demonstrated. It is shown that transfer efficiency can be traded for increased phase-space compression. By doing so, the phase-space density of a magnetically trapped ensemble is increased by a factor of 350 by the single-photon atomic cooling process.en
dc.description.departmentPhysicsen
dc.format.mediumelectronicen
dc.identifier.urihttp://hdl.handle.net/2152/10603en
dc.language.isoengen
dc.rightsCopyright is held by the author. Presentation of this material on the Libraries' web site by University Libraries, The University of Texas at Austin was made possible under a limited license grant from the author who has retained all copyrights in the works.en
dc.subjectSingle-photon atomic coolingen
dc.subjectRaman transitionen
dc.subjectMagnetic trapen
dc.subjectOptical trapen
dc.subjectPhase-space densityen
dc.subjectTransfer efficiencyen
dc.subjectRubidiumen
dc.subjectRben
dc.titleSingle-photon atomic coolingen
thesis.degree.departmentPhysicsen
thesis.degree.disciplinePhysicsen
thesis.degree.grantorThe University of Texas at Austinen
thesis.degree.levelDoctoralen
thesis.degree.nameDoctor of Philosophyen
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