Zero temperature damping of Bose-Einstein condensate oscillations by vortex-antivortex pair creation

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dc.creatorFedichev, Petr O.
dc.creatorFischer, Uwe R.
dc.creatorRecati, Alessio
dc.date2003-01-21
dc.date2003-06-16
dc.date.accessioned2026-07-07T09:24:58Z
dc.date.available2026-07-07T09:24:58Z
dc.descriptionWe investigate vortex-antivortex pair creation in a supersonically expanding and contracting quasi-2D Bose-Einstein condensate at zero temperature. For sufficiently large amplitude condensate oscillations, pair production provides the leading dissipation mechanism. The condensate oscillations decay in a nonexponential fashion, and the dissipation rate depends strongly on the oscillation amplitude. These features allow to distinguish the decay due to pair creation from other possible damping mechanisms. Experimental observation of the predicted oscillation behavior of the superfluid gas provides a direct confirmation of the hydrodynamical analogy of quantum electrodynamics and quantum vortex dynamics in two spatial dimensions.
dc.description4 pages, 2 figures; to appear in the Rapids section of Phys. Rev. A
dc.identifierhttps://arxiv.org/abs/cond-mat/0301397
dc.identifierhttp://arxiv.org/abs/cond-mat/0301397
dc.identifierPhys.Rev. A 68, 011602(R) (2003)
dc.identifierdoi:10.1103/PhysRevA.68.011602
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/156257
dc.subjectCondensed Matter
dc.subjectHigh Energy Physics - Phenomenology
dc.titleZero temperature damping of Bose-Einstein condensate oscillations by vortex-antivortex pair creation
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