Vortex nucleation and quadrupole deformation of a rotating Bose-Einstein condensate

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dc.creatorKraemer, M.
dc.creatorPitaevskii, L.
dc.creatorStringari, S.
dc.creatorZambelli, F.
dc.date2001-06-26
dc.date.accessioned2026-07-07T02:41:54Z
dc.date.available2026-07-07T02:41:54Z
dc.descriptionUsing a semi-analytic model based on the Thomas-Fermi approximation, we investigate the relevance of the quadrupole deformation of a trapped Bose-Einstein condensate for the nucleation of quantized vortices. For sufficiently high angular velocities $Ω$ of the trap, the tendency of the system to exhibit spontaneous deformation is shown to lower the barrier which inhibits the nucleation of vortices at smaller $Ω$. The corresponding value of the critical angular velocity $Ω_c$ is calculated as a function of the deformation of the trap and of the chemical potential. The theoretical predictions for $Ω_c$ refer to the case of a sudden switch-on of the deformed rotating trap and they are compared with recent experimental data.
dc.description12 pages, 4 postscript figures
dc.identifierhttps://arxiv.org/abs/cond-mat/0106524
dc.identifierhttp://arxiv.org/abs/cond-mat/0106524
dc.identifierLaser Physics 12 (1), 113 (2002)
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/17929
dc.subjectCondensed Matter
dc.titleVortex nucleation and quadrupole deformation of a rotating Bose-Einstein condensate
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