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论文类型：期刊论文

发表时间：2007-04-01

发表刊物：EUROPEAN PHYSICAL JOURNAL D

收录刊物：SCIE

卷号：42

期号：1

页面范围：147-151

ISSN号：1434-6060

摘要：In this paper, an intuitive approach-is employed to generalize the full separability criterion of tripartite quantum states of qubits to the higher-dimensional systems [Phys. Rev. A 72, 022333 (2005)]. A distinct characteristic of the present generalization is that less restrictive conditions are needed to characterize the properties of full separability. Furthermore, the formulation for pure states can be conveniently extended to the case of mixed states by utilizing the Kronecker product approximate technique. As applications, we give the analytic approximation of the criterion for weakly mixed tripartite quantum states and investigate the full separability of some weakly mixed states.