The Damping of the Bose-Condensate Oscillations in a Trap at Zero Temperature

Details The Damping of the Bose-Condensate Oscillations in a Trap at Zero Temperature The Damping of the Bose-Condensate Oscillations in a Trap at Zero Temperature

2001-12-16

arxiv.org/abs/cond-mat/0112292v1

Physics

Condensed Matter

Statistical Mechanics

Scientific paper

We discuss an existence of the damping for the radial condensate oscillations in a cylindric trap at zero temperature. The damping is a result of the parametric resonance leading to energy transfer from the coherent condensate oscillations to the longitudinal sound waves within a finite frequency interval. The parametric resonance is due to the oscillations of the sound velocity. The triggering amplitudes at zero temperature are associated with the zero-point oscillations.

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