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Role of thermal friction in relaxation of turbulent Bose-Einstein condensates
DC Field | Value | Language |
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dc.contributor.author | Kim, Joon Hyun | - |
dc.contributor.author | Kwon, Woo Jin | - |
dc.contributor.author | Shin, Y. | - |
dc.date.accessioned | 2023-04-20T07:07:12Z | - |
dc.date.available | 2023-04-20T07:07:12Z | - |
dc.date.created | 2018-09-10 | - |
dc.date.issued | 2016-09 | - |
dc.identifier.citation | Physical Review A, Vol.94 No.3, p. 033612 | - |
dc.identifier.issn | 2469-9926 | - |
dc.identifier.uri | https://hdl.handle.net/10371/191370 | - |
dc.description.abstract | In recent experiments, the relaxation dynamics of highly oblate, turbulent Bose-Einstein condensates (BECs) was investigated by measuring the vortex decay rates in various sample conditions [Phys. Rev. A 90, 063627 (2014)] and, separately, the thermal friction coefficient a for vortex motion was measured from the long-time evolution of a corotating vortex pair in a BEC [Phys. Rev. A 92, 051601(R) (2015)]. We present a comparative analysis of the experimental results, and find that the vortex decay rate Gamma is almost linearly proportional to a. We perform numerical simulations of the time evolution of a turbulent BEC using a point-vortex model equipped with longitudinal friction and vortex-antivortex pair annihilation, and observe that the linear dependence of Gamma on a is quantitatively accounted for in the dissipative point-vortex model. The numerical simulations reveal that thermal friction in the experiment was too strong to allow for the emergence of a vortex-clustered state out of decaying turbulence. | - |
dc.language | 영어 | - |
dc.publisher | American Physical Society | - |
dc.title | Role of thermal friction in relaxation of turbulent Bose-Einstein condensates | - |
dc.type | Article | - |
dc.identifier.doi | 10.1103/PhysRevA.94.033612 | - |
dc.citation.journaltitle | Physical Review A | - |
dc.identifier.wosid | 000383136800004 | - |
dc.identifier.scopusid | 2-s2.0-84989233398 | - |
dc.citation.number | 3 | - |
dc.citation.startpage | 033612 | - |
dc.citation.volume | 94 | - |
dc.description.isOpenAccess | N | - |
dc.contributor.affiliatedAuthor | Shin, Y. | - |
dc.type.docType | Article | - |
dc.description.journalClass | 1 | - |
dc.subject.keywordPlus | 3-DIMENSIONAL VORTEX DYNAMICS | - |
dc.subject.keywordPlus | SUPERFLUID TURBULENCE | - |
dc.subject.keywordPlus | QUANTUM TURBULENCE | - |
dc.subject.keywordPlus | POINT VORTICES | - |
dc.subject.keywordPlus | HELIUM | - |
dc.subject.keywordPlus | STATES | - |
dc.subject.keywordPlus | HE-4 | - |
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