Spin-Orbit-Coupled Bose-Einstein Condensates in a One-Dimensional Optical Lattice
Spin-Orbit-Coupled Bose-Einstein Condensates in a One-Dimensional Optical Lattice
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DOI：
10.1103/physrevlett.114.070401
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发表时间：
2015-02-17
影响因子：
8.6
通讯作者：
Engels, P.
中科院分区：
文献类型：
--
作者：
Hamner, C.;Zhang, Yongping;Engels, P.
我们研究了加载到平移光学晶格中的自旋-轨道耦合玻色-爱因斯坦凝聚体。我们实验证明了自旋-轨道耦合系统中伽利略不变性的缺乏，这导致凝聚体的各向异性行为依赖于晶格的平移方向。各向异性在理论上可以用有效的色散关系来解释。我们通过探索系统的动力学不稳定性，从实验上证实了这一理论图景。
We investigate a spin-orbit-coupled Bose-Einstein condensate loaded into a translating optical lattice. We experimentally demonstrate the lack of Galilean invariance in the spin-orbit-coupled system, which leads to anisotropic behavior of the condensate depending on the direction of translation of the lattice. The anisotropy is theoretically understood by an effective dispersion relation. We experimentally confirm this theoretical picture by probing the dynamical instability of the system.