渭南师范学院学报2016，Vol.31Issue(19)：19-23,5.
量子态的局部酉等价分类问题研究
A Research on Classification of Quantum States under LU Equivalence
摘要
Abstract
This paper discusses the properties of density matrix of multi-partite quantum states on local unitary equivalence, including the rank, eigenvalue and singular value of density matrix. Especially, it is proved that two states are local unitary equiva⁃lence if and only if their core tensors are the same or differ by a specific structure of the operator.关键词
密度矩阵/局部酉等价/奇异值Key words
density matrix/local unitary equivalence/singular value分类
数理科学引用本文复制引用
孙欢..量子态的局部酉等价分类问题研究[J].渭南师范学院学报,2016,31(19):19-23,5.基金项目
国家自然科学基金项目量子态分类与量子绝热逼近中的算子论方法 （）
