Faraday and Resonant Waves in Dipolar Cigar-Shaped Bose-Einstein Condensates

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dc.citation.issue9
dc.citation.rankM22
dc.citation.spage1090
dc.citation.volume11
dc.contributor.authorVudragović, Dušan
dc.contributor.authorBalaž, Antun
dc.date.accessioned2023-02-24T21:56:38Z
dc.date.available2023-02-24T21:56:38Z
dc.date.issued2019-08-21
dc.description.abstractFaraday and resonant density waves emerge in Bose-Einstein condensates as a result of harmonic driving of the system. They represent nonlinear excitations and are generated due to the interaction-induced coupling of collective oscillation modes and the existence of parametric resonances. Using a mean-field variational and a full numerical approach, we studied density waves in dipolar condensates at zero temperature, where breaking of the symmetry due to anisotropy of the dipole-dipole interaction (DDI) plays an important role. We derived variational equations of motion for the dynamics of a driven dipolar system and identify the most unstable modes that correspond to the Faraday and resonant waves. Based on this, we derived the analytical expressions for spatial periods of both types of density waves as functions of the contact and the DDI strength. We compared the obtained variational results with the results of extensive numerical simulations that solve the dipolar Gross-Pitaevskii equation in 3D, and found a very good agreement.
dc.identifier.doi10.3390/sym11091090
dc.identifier.issn2073-8994
dc.identifier.scopus2-s2.0-85071902317
dc.identifier.urihttps://pub.ipb.ac.rs/handle/123456789/3
dc.identifier.wos000489177900026
dc.language.isoen
dc.publisherMDPI AG
dc.relation.ispartofSymmetry
dc.relation.ispartofabbrSymmetry
dc.rightsopenAccess
dc.titleFaraday and Resonant Waves in Dipolar Cigar-Shaped Bose-Einstein Condensates
dc.typeArticle
dc.type.versionpublishedVersion
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