Separability criteria based on Heisenberg-Weyl representation of density matrices
Separability criteria based on Heisenberg-Weyl representation of density matrices
复制标题
基于密度矩阵 Heisenberg-Weyl 表示的可分离性准则
DOI:
10.1088/1674-1056/27/3/030302
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发表时间:
2018-03-01
影响因子:
1.7
通讯作者:
Fei, Shao-Ming
中科院分区:
文献类型:
--
作者:
Chang, Jingmei;Cui, Meiyu;Fei, Shao-Ming
Separability is an important problem in theory of quantum entanglement. By using the Bloch representation of quantum states in terms of the Heisenberg-Weyl observable basis, we present a new separability criterion for bipartite quantum systems. It is shown that this criterion can be better than the previous ones in detecting entanglement. The results are generalized to multipartite quantum states.