Light scattering from ultracold gases in disordered optical lattices
Light scattering from ultracold gases in disordered optical lattices
复制标题
无序光学晶格中超冷气体的光散射
DOI：
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发表时间：
2012
期刊：
影响因子：
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通讯作者：
Z. Idziaszek
中科院分区：
文献类型：
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作者：
K. Jachymski;Z. Idziaszek
我们考虑有限温度下双色光学晶格中的玻色子气体。随着次级晶格振幅的增大，单粒子本征态变得局域化。我们用精确方法计算了非相互作用和强相互作用极限下的正则配分函数，分析了超流相、局域相和强相互作用气体的统计性质。我们表明，这些阶段可以区分在实验中使用非共振光散射。
We consider a gas of bosons in a bichromatic optical lattice at finite temperatures. As the amplitude of the secondary lattice grows, the single-particles eigenstates become localized. We calculate the canonical partition function using exact methods for the noninteracting and strongly interacting limit and analyze the statistical properties of the superfluid phase, localized phase and the strongly interacting gas. We show that those phases may be distinguished in experiment using off-resonant light scattering.