Non-equilibrium evolution of Bose-Einstein condensate deformation in temporally controlled weak disorder

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dc.citation.issue1
dc.citation.rankM21
dc.citation.spage008
dc.citation.volume10
dc.contributor.authorRadonjić, Milan
dc.contributor.authorPelster, Axel
dc.date.accessioned2024-06-14T10:39:28Z
dc.date.available2024-06-14T10:39:28Z
dc.date.issued2021-01-14
dc.description.abstractWe consider a time-dependent extension of a perturbative mean-field approach to the homogeneous dirty boson problem by considering how switching on and off a weak disorder potential affects the stationary state of an initially {equilibrated} Bose-Einstein condensate by the emergence of a disorder-induced condensate deformation. We find that in the switch on scenario the stationary condensate deformation turns out to be a sum of an equilibrium part{, that actually corresponds to adiabatic switching on the disorder,} and a dynamically-induced part, where the latter depends on the particular driving protocol. If the disorder is switched off afterwards, the resulting condensate deformation acquires an additional dynamically-induced part in the long-time limit, while the equilibrium part vanishes. {We also present an appropriate generalization to inhomogeneous trapped condensates.} Our results demonstrate that the condensate deformation represents an indicator of the generically non-equilibrium nature of steady states of a Bose gas in a temporally controlled weak disorder.
dc.identifier.doi10.21468/scipostphys.10.1.008
dc.identifier.issn2542-4653
dc.identifier.scopus2-s2.0-85100525695
dc.identifier.urihttps://pub.ipb.ac.rs/handle/123456789/100
dc.identifier.wos000654904300002
dc.language.isoen
dc.publisherSciPost Foundation
dc.relation.ispartofSciPost Physics
dc.relation.ispartofabbrSciPost Phys.
dc.rightsopenAccess
dc.titleNon-equilibrium evolution of Bose-Einstein condensate deformation in temporally controlled weak disorder
dc.typeArticle
dc.type.versionpublishedVersion
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