Matter-Wave Dark Solitons: Stochastic versus Analytical Results

dc.contributor.authorCockburn, S. P.en
dc.contributor.authorNistazakis, H. E.en
dc.contributor.authorHorikis, T. P.en
dc.contributor.authorKevrekidis, P. G.en
dc.contributor.authorProukakis, N. P.en
dc.contributor.authorFrantzeskakis, D. J.en
dc.date.accessioned2015-11-24T17:25:14Z
dc.date.available2015-11-24T17:25:14Z
dc.identifier.issn0031-9007-
dc.identifier.urihttps://olympias.lib.uoi.gr/jspui/handle/123456789/13009
dc.rightsDefault Licence-
dc.subjectbose-einstein condensateen
dc.subjectdynamicsen
dc.subjectdiffusionen
dc.subjectvorticesen
dc.subjectsystemsen
dc.subjectgasesen
dc.subjectmodelen
dc.titleMatter-Wave Dark Solitons: Stochastic versus Analytical Resultsen
heal.abstractThe dynamics of dark matter-wave solitons in elongated atomic condensates are discussed at finite temperatures. Simulations with the stochastic Gross-Pitaevskii equation reveal a noticeable, experimentally observable spread in individual soliton trajectories, attributed to inherent fluctuations in both phase and density of the underlying medium. Averaging over a number of such trajectories (as done in experiments) washes out such background fluctuations, revealing a well-defined temperature-dependent temporal growth in the oscillation amplitude. The average soliton dynamics is well captured by the simpler dissipative Gross-Pitaevskii equation, both numerically and via an analytically derived equation for the soliton center based on perturbation theory for dark solitons.en
heal.accesscampus-
heal.fullTextAvailabilityTRUE-
heal.identifier.primaryDoi 10.1103/Physrevlett.104.174101-
heal.identifier.secondary<Go to ISI>://000277210600020-
heal.identifier.secondaryhttp://prl.aps.org/pdf/PRL/v104/i17/e174101-
heal.journalNamePhys Rev Letten
heal.journalTypepeer reviewed-
heal.languageen-
heal.publicationDate2010-
heal.publisherAmerican Physical Societyen
heal.recordProviderΠανεπιστήμιο Ιωαννίνων. Σχολή Θετικών Επιστημών. Τμήμα Μαθηματικώνel
heal.typejournalArticle-
heal.type.elΆρθρο Περιοδικούel
heal.type.enJournal articleen

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