Vortex creation during magnetic trap manipulations of spinor Bose-Einstein condensates

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dc.creatorItin, A. P.
dc.creatorMorishita, T.
dc.creatorSatoh, M.
dc.creatorTolstikhin, O. I.
dc.creatorWatanabe, S.
dc.date2006-03-27
dc.date2006-04-05
dc.date.accessioned2026-07-07T08:33:36Z
dc.date.available2026-07-07T08:33:36Z
dc.descriptionWe investigate several mechanisms of vortex creation during splitting of a spinor BEC in a magnetic trap controlled by a pair of current carrying wires and bias magnetic fields. Our study is motivated by a recent MIT experiment on splitting BECs with a similar trap, where unexpected fork-like structure appeared in the interference fringes corresponding to interference of two condensates, one with and the other without a singly quantized vortex. It is well-known that in a spin-1 BEC in a quadrupole trap a doubly quantized vortex is produced topologically by a ``slow'' reversal of bias magnetic field $B_z$. We find that in the magnetic trap considered it is also possible to produce a 4- and 1-quantized vortex in a spin-1 BEC. The latter is possible, for example, during the magnetic field switching-off process. We therefore provide a possible explanation for the unexpected interference patterns in the experiment. We also give an example of the creation of singly quantized vortices due to ``fast'' splitting, which is a possible alternative mechanism of the interference pattern.
dc.description16 pages, 8 figures (of reduced quality; original figures are available upon request: alx_it@yahoo.com); Comments to ver.2: calculations without gravity were added, several typos corrected
dc.identifierhttps://arxiv.org/abs/cond-mat/0603699
dc.identifierhttp://arxiv.org/abs/cond-mat/0603699
dc.identifierPhys. Rev. A 73, 063615 (2006)
dc.identifierdoi:10.1103/PhysRevA.73.063615
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/139189
dc.subjectOther Condensed Matter
dc.titleVortex creation during magnetic trap manipulations of spinor Bose-Einstein condensates
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