一维相干涡旋
Coherence vortices in one spatial dimension
摘要：
相干涡旋是Glauber的两点量子相干性相位中的螺旋型拓扑缺陷，与系综平均随机量子场不相关的空间点对相关联。相干涡旋可能存在于维数太低而不能支持空间涡旋的系统中。我们展示了这种量子相干相位缺陷的一维模型量子系统的晶格。我们讨论了相干涡旋的物理意义，并提出了如何实现实验。
英文摘要：
Coherence vortices are screw-type topological defects in the phase of Glauber's two-point degree of quantum coherence, associated with pairs of spatial points at which an ensemble-averaged stochastic quantum field is uncorrelated. Coherence vortices may be present in systems whose dimensionality is too low to support spatial vortices. We exhibit lattices of such quantum-coherence phase defects for a one-dimensional model quantum system. We discuss the physical meaning of coherence vortices and propose how they may be realized experimentally.
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