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Title
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Energy relaxation in the mean-field description of polariton condensates
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Author
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Abstract
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| We introduce a dissipation term in the Gross-Pitaevskii equation that describes the stimulated relaxation of condensed bosons due to scattering with different types of particles. This situation applies to Bose-Einstein condensates of quasi-particles in the solid state, such as magnons and excitons. Our model is compatible with the phenomenology of superfluidity: supercurrents are stable up to a critical speed and decay when they are faster. We apply our model to a description of the relaxation of polariton condensates in a shallow trap. |
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Language
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English
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Source (journal)
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New journal of physics / Institute of Physics [Londen]; German Physical Society. - Bristol
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Publication
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Bristol
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2012
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ISSN
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1367-2630
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DOI
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10.1088/1367-2630/14/7/075020
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Volume/pages
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14
(2012)
, 12 p.
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Article Reference
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075020
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ISI
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000307075200001
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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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