论文标题
偏见的两分系统的基础状态的通用纠缠熵
Universal entanglement entropy in the ground state of biased bipartite systems
论文作者
论文摘要
在具有单个或多个保守量的多体二分量子系统中研究了基态纠缠熵。结果表明，纠缠熵在两个子系统之间的占用比上表现出通用的幂律行为。单一和多个保守数量导致不同的幂律指数，这表明纠缠熵可以用于检测隐藏的保守量。此外，占用度测量值允许推断两分的纠缠熵。上述所有结果均已概括为Rényi熵。
The ground state entanglement entropy is studied in a many-body bipartite quantum system with either a single or multiple conserved quantities. It is shown that the entanglement entropy exhibits a universal power-law behaviour at large $R$ -- the occupancy ratio between the two subsystems. Single and multiple conserved quantities lead to different power-law exponents, suggesting the entanglement entropy can serve to detect hidden conserved quantities. Moreover, occupancy measurements allow to infer the bipartite entanglement entropy. All the above results are generalized for the Rényi entropy.
