Abstract The separability of mixed states in multipartite quantum systems is investigated. If a quantum state in a multipartite system with an arbitrary dimension is separable, some quantity in relation to Hermitian matrix is positive.
Received: 14 April 2004
Revised: 14 September 2004
Accepted manuscript online:
PACS:
03.67.Mn
(Entanglement measures, witnesses, and other characterizations)
Fund: Project supported by the National Natural Science Foundation of China (Grant No 10271081) and the Natural Science Foundation of Beijing (Grant No 1042004).
Cite this article:
Zhao Hui (赵慧) Separability criteria for multipartite quantum mixed states 2005 Chinese Physics 14 257
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