The axial breathing mode in rapidly rotating Bose-Einstein condensates and uncertainty of the rotation velocity

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dc.creatorWatanabe, Gentaro
dc.date2005-12-14
dc.date2007-07-18
dc.date.accessioned2026-07-07T11:04:18Z
dc.date.available2026-07-07T11:04:18Z
dc.descriptionExperiments on the axial breathing mode in a rapidly rotating Bose-Einstein condensate are examined. Assuming a cold cloud without thermal component, we show that errors due to defocus of an imaging camera in addition to an inclination of the rotational axis can lead to a significant underestimate of the rotation rate in the fast rotation limit; within these uncertainties, our theoretical prediction agrees with the experimental data. We also show that, in the fast rotation regime, the Thomas-Fermi theory, which is inapplicable there, underestimates the rotation rate. Underestimate of the rotation rate due to these effects would also partly explain a discrepancy between theory and experiment for the Tkachenko mode frequency in the fast rotation regime.
dc.description5 pages, 2 figures; this paper is related to cond-mat/0506331; accepted for publication in Phys. Rev. A Rapid Communications
dc.identifierhttps://arxiv.org/abs/cond-mat/0512317
dc.identifierhttp://arxiv.org/abs/cond-mat/0512317
dc.identifierPhys.Rev.A76:031601,2007
dc.identifierdoi:10.1103/PhysRevA.76.031601
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/188848
dc.subjectMesoscale and Nanoscale Physics
dc.subjectSoft Condensed Matter
dc.subjectNuclear Theory
dc.titleThe axial breathing mode in rapidly rotating Bose-Einstein condensates and uncertainty of the rotation velocity
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