Quantized vortices in atomic Bose-Einstein condensates

Details Quantized vortices in atomic Bose-Einstein condensates Quantized vortices in atomic Bose-Einstein condensates

2007-09-07

arxiv.org/abs/0709.1042v4

Prog. Low Temp. Phys. vol. 16, 351-403 (2008)

Physics

Condensed Matter

Other Condensed Matter

51 pages, 12 figures, to be published in Progress in Low Temperature Physics, vol. 16

Scientific paper

In this review, we give an overview of the experimental and theoretical advances in the physics of quantized vortices in dilute atomic-gas Bose--Einstein condensates in a trapping potential, especially focusing on experimental research activities and their theoretical interpretations. Making good use of the atom optical technique, the experiments have revealed many novel structural and dynamic properties of quantized vortices by directly visualizing vortex cores from an image of the density profiles. These results lead to a deep understanding of superfluid hydrodynamics of such systems. Typically, vortices are stabilized by a rotating potential created by a laser beam, magnetic field, and thermal gas. Finite size effects and inhomogeneity of the system, originating from the confinement by the trapping potential, yield unique vortex dynamics coupled with the collective excitations of the condensate. Measuring the frequencies of the collective modes is an accurate tool for clarifying the character of the vortex state. The topics included in this review are the mechanism of vortex formation, equilibrium properties, and dynamics of a single vortex and those of a vortex lattice in a rapidly rotating condensate.

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