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

被引:62
作者
Cozzini, M [1 ]
Stringari, S
机构
[1] Univ Trent, Dipartimento Fis, I-38050 Povo, Italy
[2] INFM, BEC, I-38050 Povo, Italy
来源
PHYSICAL REVIEW A | 2003年 / 67卷 / 04期
关键词
D O I
10.1103/PhysRevA.67.041602
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
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 [Phys. Rev. Lett. 89, 100403 (2002)].
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页数:4
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