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Transport properties of cold atoms in optical lattice
Laser Physics ( IF 1.2 ) Pub Date : 2021-09-08 , DOI: 10.1088/1555-6611/ac20dc
Cheng Xue , Shuyu Dai , Bo Cui

We investigated the transport properties of cold atoms in a one-dimensional optical lattice under distance selective dissipation and external driving. We analyze how tunneling, on-site interaction, dissipation and external driving affect the transport of cold atoms. We used mean-field theory and the classical phase space method to explain the dynamics of the system. In order to analyze the transport effect of cold atoms, we calculate the relative density of atoms on each site and the standard deviation of relative density. The manipulation transport of cold atoms can be achieved through a step function like interaction in theory. In particular, we study the transport of cold atoms in the double-well with external driving. The steady states of the system are analytically derived.



中文翻译:

光晶格中冷原子的输运特性

我们研究了一维光学晶格中冷原子在距离选择性耗散和外部驱动下的传输特性。我们分析了隧穿、现场相互作用、耗散和外部驱动如何影响冷原子的传输。我们使用平均场理论和经典的相空间方法来解释系统的动力学。为了分析冷原子的输运效应,我们计算了每个位点上原子的相对密度和相对密度的标准偏差。理论上,冷原子的操纵输运可以通过类似相互作用的阶跃函数来实现。特别是,我们研究了双阱中冷原子在外部驱动下的传输。系统的稳态是通过分析导出的。

更新日期:2021-09-08
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