Local unitary equivalence of arbitrary dimensional bipartite quantum states
Local unitary equivalence of arbitrary dimensional bipartite quantum states
复制标题
任意维二分量子态的局部酉等价
DOI：
10.1103/physreva.86.010303
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发表时间：
2012-07-11
影响因子：
2.9
通讯作者：
Li-Jost, Xianqing
中科院分区：
文献类型：
--
作者：
Zhou, Chunqin;Zhang, Ting-Gui;Li-Jost, Xianqing
研究了任意维二体量子系统的非定域性质。给出了局部酉变换下的一组完整的不变量。这些不变量给出了局部么正变换下量子态等价的充分和必要条件：两个密度矩阵局部等价当且仅当所有这些不变量具有相等的值。
The nonlocal properties of arbitrary dimensional bipartite quantum systems are investigated. A complete set of invariants under local unitary transformations is presented. These invariants give rise to both sufficient and necessary conditions for the equivalence of quantum states under local unitary transformations: two density matrices are locally equivalent if and only if all these invariants have equal values.