Berry Phase Effect on Exciton Transport and Bose Einstein Condensate

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dc.creatorYao, Wang
dc.creatorNiu, Qian
dc.date2008-01-08
dc.date2008-07-28
dc.date.accessioned2026-07-07T09:59:49Z
dc.date.available2026-07-07T09:59:49Z
dc.descriptionWith exciton lifetime much extended in semiconductor quantum-well structures, their transport and Bose-Einstein condensation become a focus of research in recent years. We reveal a momentum-space gauge field in the exciton center-of-mass dynamics due to Berry phase effects. We predict spin-dependent topological transport of the excitons analogous to the anomalous Hall and Nernst effects for electrons. We also predict spin-dependent circulation of a trapped exciton gas and instability in an exciton condensate in favor of vortex formation.
dc.descriptionto appear in Phys. Rev. Lett
dc.identifierhttps://arxiv.org/abs/0801.1103
dc.identifierhttp://arxiv.org/abs/0801.1103
dc.identifierPhys. Rev. Lett. 101, 106401 (2008)
dc.identifierdoi:10.1103/PhysRevLett.101.106401
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/168163
dc.subjectMesoscale and Nanoscale Physics
dc.titleBerry Phase Effect on Exciton Transport and Bose Einstein Condensate
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