Chaotic dynamics of a Bose-Einstein condensate in a double-well trap

被引:23
作者
Coullet, P [1 ]
Vandenberghe, N [1 ]
机构
[1] CNRS, Inst Lineaire Nice, UNSA, F-06560 Valbonne, France
关键词
D O I
10.1088/0953-4075/35/6/312
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
The. dynamics of Bose-Einstein condensates in a double-well magnetic trap is studied using the Gross-Pitaevskii equation (GPE) and a two-mode approximation. The self-trapping instability occurs when a sufficiently high potential barrier is formed in the centre of the trap. Close to the instability threshold, the GPE is reduced to a simple amplitude equation. In the case where weakly dissipative effects are taken into account, the condensate exhibits aperiodic oscillations which can be described by the Lorenz thermal convection model.
引用
收藏
页码:1593 / 1612
页数:20
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