论文标题
在时间控制的弱疾病中，Bose-Einstein冷凝物变形的非平衡进化
Non-equilibrium evolution of Bose-Einstein condensate deformation in temporally controlled weak disorder
论文作者
论文摘要
我们考虑通过考虑打开和关闭弱障碍电位的打开和关闭弱玻色子问题的扰动平均场方法的时间依赖性扩展，这是通过疾病诱导的冷凝物造成的凝结物畸形的出现，会影响最初平衡的玻色子凝结物的固定状态。我们发现，在场景开关中，固定的冷凝物变形事实证明是平衡部分的总和，实际上对应于绝热开关对该疾病的变化，而动态诱导的部分则取决于特定的驱动方案。如果此后关闭该疾病，则产生的冷凝水变形将在长期限制中获得额外的动态诱导部分，而平衡部分消失。我们还对不均匀的被困冷凝物提出了适当的概括。我们的结果表明，冷凝物变形代表了时间控制的弱疾病中bose气体稳态的一般非平衡性质的指标。
We consider a time-dependent extension of a perturbative mean-field approach to the dirty boson problem by considering how switching on and off a weak disorder potential affects the stationary state of an initially equilibrated Bose-Einstein condensate by the emergence of a disorder-induced condensate deformation. We find that in the switch on scenario the stationary condensate deformation turns out to be a sum of an equilibrium part, that actually corresponds to adiabatic switching on the disorder, and a dynamically-induced part, where the latter depends on the particular driving protocol. If the disorder is switched off afterwards, the resulting condensate deformation acquires an additional dynamically-induced part in the long-time limit, while the equilibrium part vanishes. We also present an appropriate generalization to inhomogeneous trapped condensates. Our results demonstrate that the condensate deformation represents an indicator of the generically non-equilibrium nature of steady states of a Bose gas in a temporally controlled weak disorder.
