arXiv:cond-mat/0211294 · Physical Review A

Macroscopic dynamics of a Bose-Einstein condensate containing a vortex lattice

Marco Cozzini, S. Stringari

Published Apr 11, 2003• 59 citations

Abstract

Starting from the equations of rotational hydrodynamics we study the macroscopic behavior of a trapped Bose-Einstein condensate containing a large number of vortices. The stationary configurations of the system, the frequencies of the collective excitations, and the expansion of the condensate are investigated as a function of the angular velocity of the vortex lattice. The time evolution of the condensate and of the lattice geometry induced by a sudden deformation of the trap is also discussed and compared with the recent experimental results of P. Engels et al. [Phys. Rev. Lett. 89, 100403 (2002)].

DOI: 10.1103/physreva.67.041602

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