Impurity crystal in a Bose-Einstein condensate

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dc.creatorRoberts, David C.
dc.creatorRica, Sergio
dc.date2008-11-29
dc.date.accessioned2026-07-07T12:29:26Z
dc.date.available2026-07-07T12:29:26Z
dc.descriptionWe investigate the behavior of impurity fields immersed in a larger condensate field in 1, 2, and 3 dimensions. We discuss the localization of a single impurity field within a condensate and note the effects of surface energy. We derive the functional form of the attractive interaction between two impurities due to mediation from the condensate. Generalizing the analysis to $N$ impurity fields, we show that within various parameter regimes a crystal of impurity fields can form spontaneously in the condensate. Finally, the system of condensate and crystallized impurity structure is shown to have nonclassical rotational inertia, which is characteristic of superfluidity, i.e. the system can be seen to exhibit supersolid behavior.
dc.description5 pages, 3 color figures; Accepted to Phys. Rev. Lett
dc.identifierhttps://arxiv.org/abs/0812.0079
dc.identifierhttp://arxiv.org/abs/0812.0079
dc.identifierPhys. Rev. Lett. 102, 025301 (2009)
dc.identifierdoi:10.1103/PhysRevLett.102.025301
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/215873
dc.subjectStatistical Mechanics
dc.subjectOther Condensed Matter
dc.titleImpurity crystal in a Bose-Einstein condensate
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