论文标题
量子状态的当地统一不变
Local Unitary Invariants of Quantum States
论文作者
论文摘要
我们研究当地统一转换下混合国家的等效性。首先，我们在Bloch表示中表达量子状态。然后基于系数矩阵，构建了一些不变性。此方法和结果可以扩展到多部分高维系统。
We study the equivalence of mixed states under local unitary transformations. First we express quantum states in Bloch representation. Then based on the coefficient matrices, some invariants are constructed. This method and results can be extended to multipartite high dimensional system.
