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Observation of von Kármán Vortex Street in an Atomic Superfluid Gas

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dc.contributor.authorWoo Jin Kwon-
dc.contributor.authorJoon Hyun Kim-
dc.contributor.authorSang Won Seo-
dc.contributor.authorYong il Shin-
dc.date.available2017-01-20T08:30:19Z-
dc.date.created2017-01-19-
dc.date.issued2016-12-
dc.identifier.issn0031-9007-
dc.identifier.urihttps://pr.ibs.re.kr/handle/8788114/3214-
dc.description.abstractWe report on the experimental observation of vortex cluster shedding from a moving obstacle in an oblate atomic Bose-Einstein condensate. At low obstacle velocities v above a critical value, vortex clusters consisting of two like-sign vortices are generated to form a regular configuration like a von Kármán street, and as v is increased, the shedding pattern becomes irregular with many different kinds of vortex clusters. In particular, we observe that the Stouhal number associated with the shedding frequency exhibits saturation behavior with increasing v. The regular-to-turbulent transition of the vortex cluster shedding reveals remarkable similarities between a superfluid and a classical viscous fluid. Our work opens a new direction for experimental investigations of the superfluid Reynolds number characterizing universal superfluid hydrodynamics. © 2016 American Physical Society-
dc.description.uri1-
dc.language영어-
dc.publisherAMER PHYSICAL SOC-
dc.titleObservation of von Kármán Vortex Street in an Atomic Superfluid Gas-
dc.typeArticle-
dc.type.rimsART-
dc.identifier.wosid000389507000009-
dc.identifier.scopusid2-s2.0-85003905106-
dc.identifier.rimsid58418ko
dc.date.tcdate2018-10-01-
dc.contributor.affiliatedAuthorWoo Jin Kwon-
dc.contributor.affiliatedAuthorJoon Hyun Kim-
dc.contributor.affiliatedAuthorYong il Shin-
dc.identifier.doi10.1103/PhysRevLett.117.245301-
dc.identifier.bibliographicCitationPHYSICAL REVIEW LETTERS, v.117, no.24, pp.245301-
dc.citation.titlePHYSICAL REVIEW LETTERS-
dc.citation.volume117-
dc.citation.number24-
dc.citation.startPage245301-
dc.date.scptcdate2018-10-01-
dc.description.wostc17-
dc.description.scptc17-
dc.description.journalClass1-
dc.description.journalRegisteredClassscie-
dc.description.journalRegisteredClassscopus-
Appears in Collections:
Center for Correlated Electron Systems(강상관계 물질 연구단) > 1. Journal Papers (저널논문)
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