Phase-separated vortex-lattice in a rotating binary Bose–Einstein condensate

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dc.contributor.authorAdhikari, S. K. [UNESP]
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2019-10-06T16:08:20Z
dc.date.available2019-10-06T16:08:20Z
dc.date.issued2019-06-15
dc.description.abstractWe study circularly-symmetric phase separation of vortex lattices in a rapidly rotating harmonically-trapped quasi-two-dimensional binary Bose–Einstein condensate (BEC) by introducing a weak quartic trap in one of the components. The increase of the rotational frequency in such a system is also found to generate a phase separation of the vortex lattices of an overlapping non-rotating BEC. The phase-separated vortex lattices have different structures for a binary BEC with inter-species repulsion and inter-species attraction. In the former case of a fully repulsive binary BEC, the phase separation of the vortex-lattices is accompanied by a complete phase separation of component densities. In the latter case of inter-species attraction, there is a partial phase separation of component densities, although there could be a complete phase separation of the generated vortex lattices in the two components. In the case of inter-species attraction, we need to have different intra-species repulsion in the two components for an efficient phase separation. We compare and contrast our results with the phase separation obtained in a harmonically-trapped binary BEC without any quartic trap.en
dc.description.affiliationInstituto de Física Teórica UNESP - Universidade Estadual Paulista, 01.140-070 São Paulo
dc.description.affiliationUnespInstituto de Física Teórica UNESP - Universidade Estadual Paulista, 01.140-070 São Paulo
dc.description.sponsorshipFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.description.sponsorshipIdFAPESP: 2016/01343-7
dc.format.extent212-219
dc.identifierhttp://dx.doi.org/10.1016/j.cnsns.2018.11.019
dc.identifier.citationCommunications in Nonlinear Science and Numerical Simulation, v. 71, p. 212-219.
dc.identifier.doi10.1016/j.cnsns.2018.11.019
dc.identifier.issn1007-5704
dc.identifier.scopus2-s2.0-85057793064
dc.identifier.urihttp://hdl.handle.net/11449/188446
dc.language.isoeng
dc.relation.ispartofCommunications in Nonlinear Science and Numerical Simulation
dc.rights.accessRightsAcesso aberto
dc.sourceScopus
dc.subjectGross–Pitaevskii equation
dc.subjectRotating Bose–Einstein condensate
dc.subjectSplit-step Crank–Nicolson scheme
dc.subjectVortex lattice
dc.titlePhase-separated vortex-lattice in a rotating binary Bose–Einstein condensateen
dc.typeArtigo

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