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Abstract：
A sufficient and necessary criterion for separability of bipartite quantum states is presented. We construct a class of mixed states in 2 circle times k quantum systems and in 3 circle times k quantum systems, respectively and show that these states are separable if and only if they are positive partial transpositions.
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CHINESE PHYSICS B
ISSN： 1674-1056
Year： 2014
Issue： 8
Volume： 23
1 . 7 0 0
JCR@2022
ESI Discipline： PHYSICS;
ESI HC Threshold：202
JCR Journal Grade：2
CAS Journal Grade：4
Cited Count：
WoS CC Cited Count： 0
SCOPUS Cited Count：
ESI Highly Cited Papers on the List： 0 Unfold All
WanFang Cited Count：
Chinese Cited Count：
30 Days PV： 1
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