Coherence and instability in a driven Bose–Einstein condensate: a fully dynamical number-conserving approach

Coherence and instability in a driven Bose–Einstein condensate: a fully dynamical number-conserving approach
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驱动玻色-爱因斯坦凝聚态的相干性和不稳定性:完全动态的数守恒方法

DOI:
10.1088/1367-2630/14/1/013038
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发表时间:
2011
影响因子:
3.3
通讯作者:
S. Gardiner
S. Gardiner
中科院分区:
物理与天体物理2区
文献类型:
--
作者:
T. Billam;S. Gardiner

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我们考虑由周期性 δ-kick 驱动的玻色-爱因斯坦凝聚态。与一阶描述相反,一阶描述预测非凝聚态在共振参数范围内快速、无限制的增长,在我们完全依赖时间的二阶描述中对凝聚态消耗的一致处理会抑制这种增长,导致(非)凝聚态总体振荡和系统的相干性。
We consider a Bose–Einstein condensate driven by periodic δ-kicks. In contrast to first-order descriptions, which predict rapid, unbounded growth of the noncondensate in resonant parameter regimes, the consistent treatment of condensate depletion in our fully time-dependent, second-order description acts to damp this growth, leading to oscillations in the (non)condensate population and the coherence of the system.
δ-踢玻色-爱因斯坦凝聚体中的非线性共振。
DOI: 10.1103/physrevlett.102.014102
发表时间: 2009
影响因子: 8.6
作者:
Monteiro TS
通讯作者: Monteiro TS