Dissipative dynamics of vortex arrays in trapped Bose-condensed gases: neutron stars physics on $μ$K scale

Details Dissipative dynamics of vortex arrays in trapped Bose-condensed gases: neutron stars physics on $μ$K scale Dissipative dynamics of vortex arrays in trapped Bose-condensed gases: neutron stars physics on $μ$K scale

2000-04-17

arxiv.org/abs/cond-mat/0004264v3

Physics

Condensed Matter

Soft Condensed Matter

4 pages, revtex; revised version

Scientific paper

We develop a theory of dissipative dynamics of large vortex arrays in trapped Bose-condensed gases. We show that in a static trap the interaction of the vortex array with thermal excitations leads to a non-exponential decay of the vortex structure, and the characteristic lifetime depends on the initial density of vortices. Drawing an analogy with physics of pulsar glitches, we propose an experiment which employs the heating of the thermal cloud in the course of the decay of the vortex array as a tool for a non-destructive study of the vortex dynamics.

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