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Title
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Superfluidity of a nonequilibrium Bose-Einstein condensate of polaritons
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Author
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Abstract
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| We study theoretically superfluidity in a driven-dissipative Bose gas out of thermal equilibrium, and discuss the relation with conventional superfluids. We show how the superfluid behavior is characterized by a dramatic increase in the lifetime of a quantized vortex and point out the influence of the spatial geometry of the condensate. We apply our study to a condensate of polaritons in a semiconductor microcavity, whose properties can be directly inferred from optical spectroscopy. We propose three different experimental schemes to measure the vorticity of the polariton condensate. |
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Language
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English
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Source (journal)
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Physical review : B : condensed matter and materials physics. - Lancaster, Pa, 1998 - 2015
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Publication
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Lancaster, Pa
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2010
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ISSN
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1098-0121
[print]
1550-235X
[online]
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DOI
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10.1103/PHYSREVB.81.054508
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Volume/pages
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81
:5
(2010)
, 6 p.
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Article Reference
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054508
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ISI
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000274998000105
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Medium
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E-only publicatie
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Full text (Publisher's DOI)
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Full text (open access)
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