成对超流和逆流超流的动力学复苏
Dynamical revivals of the paired superfluidity and counterflow superfluidity
摘要：
在平均场论下研究了光晶格中两种玻色子的量子动力学。量子相干性经历周期性的坍缩和恢复，这取决于物种间和物种内相互作用的相对强度。在二位哈伯德模型中，通过精确对角化，识别并验证了成对超流和逆流超流。提出了一种实现和探测光晶格中成对超流和逆流超流的动力学方法。
英文摘要：
The quantum dynamics of two-species bosons in an optical lattice is studied within the mean-field theory. The quantum coherence experiences periodical collapses and revivals, which depends on the relative strength of the inter-and intra-species interactions. The paired superfluidity and the counterflow superfluidity are identified and are verified by exact diagonaliztion in the two-site Hubbard model. We suggest a dynamical method of implementation and detection for the paired superfluid and the counterflow superfluidity in the optical lattices.
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