Enhancement of the scissors mode of an expanding Bose-Einstein condensate

Details Enhancement of the scissors mode of an expanding Bose-Einstein condensate Enhancement of the scissors mode of an expanding Bose-Einstein condensate

2002-07-05

arxiv.org/abs/cond-mat/0207158v1

Phys. Rev. A 67, 023608 (2003)

Physics

Condensed Matter

RevTeX, 5 figures

Scientific paper

10.1103/PhysRevA.67.023608

We study the time-evolution of the scissors mode of a Bose-Einstein condensate during the ballistic expansion after release from the magnetic trap. We show that despite the nontrivial character of the superfluid expansion, the sinusoidal behavior of the scissor oscillations is recovered after an asymptotic expansion, with an enhancement of the final amplitude. We investigate this phenomenon with a condensate held in an elongated magnetostatic potential, whose particular shape allows for the excitation of the scissors mode.

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