Vortex patterns and the critical rotational frequency in rotating dipolar Bose-Einstein condensates

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dc.citation.articleNumber023610en_US
dc.citation.issueNumber2en_US
dc.citation.journalTitlePhysical Review Aen_US
dc.citation.volumeNumber98en_US
dc.contributor.authorCai, Yongyongen_US
dc.contributor.authorYuan, Yongjunen_US
dc.contributor.authorRosenkranz, Matthiasen_US
dc.contributor.authorPu, Hanen_US
dc.contributor.authorBao, Weizhuen_US
dc.date.accessioned2018-11-09T14:59:57Zen_US
dc.date.available2018-11-09T14:59:57Zen_US
dc.date.issued2018en_US
dc.description.abstractBased on the two-dimensional mean-field equations for pancake-shaped dipolar Bose-Einstein condensates in a rotating frame, for both attractive and repulsive dipole-dipole interaction (DDI) as well as arbitrary polarization direction, we study the profiles of the single vortex state and show how the critical rotational frequency changes with the s-wave contact interaction strength, DDI strength, and polarization angle. In addition, we find numerically that at the “magic angle” ϑ=arccos(√3/3), the critical rotational frequency is almost independent of the DDI strength. By numerically solving the dipolar Gross-Pitaevskii equation at high rotation speed, we identify different patterns of vortex lattices which strongly depend on the polarization direction. As a result, we undergo a study of vortex lattice structures for the whole regime of polarization direction and find evidence that the vortex lattice orientation tends to be aligned to the dipole polarization axis for positive DDI strength and to the perpendicular direction of the dipole axis for negative DDI strength.en_US
dc.identifier.citationCai, Yongyong, Yuan, Yongjun, Rosenkranz, Matthias, et al.. "Vortex patterns and the critical rotational frequency in rotating dipolar Bose-Einstein condensates." <i>Physical Review A,</i> 98, no. 2 (2018) American Physical Society: https://doi.org/10.1103/PhysRevA.98.023610.en_US
dc.identifier.digitalPhysRevA.98.023610en_US
dc.identifier.doihttps://doi.org/10.1103/PhysRevA.98.023610en_US
dc.identifier.urihttps://hdl.handle.net/1911/103295en_US
dc.language.isoengen_US
dc.publisherAmerican Physical Societyen_US
dc.rightsArticle is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.en_US
dc.titleVortex patterns and the critical rotational frequency in rotating dipolar Bose-Einstein condensatesen_US
dc.typeJournal articleen_US
dc.type.dcmiTexten_US
dc.type.publicationpublisher versionen_US
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