A note on local unitary equivalence of isotropic-like states

We consider the local unitary equivalence of a class of quantum states in a bipartite case and a multipartite case. The necessary and sufficient condition is presented. As special cases, the local unitary equivalent classes of isotropic state and Werner state are provided. Then we study the local un...

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Bibliographic Details
Published in:Chinese physics B 2015-12, Vol.24 (12), p.228-231
Main Author: 张廷桂 华波波 李明 赵明镜 杨红
Format: Article
Language:English
Subjects:
Equivalence
充分必要条件
充分条件
各向同性
局域
注记
状态
等价性
量子态
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Summary:We consider the local unitary equivalence of a class of quantum states in a bipartite case and a multipartite case. The necessary and sufficient condition is presented. As special cases, the local unitary equivalent classes of isotropic state and Werner state are provided. Then we study the local unitary similar equivalence of this class of quantum states and analyze the necessary and sufficient condition.
ISSN:1674-1056
2058-3834
1741-4199
DOI:10.1088/1674-1056/24/12/120305