Full separability criterion for tripartite quantum systems

Details Full separability criterion for tripartite quantum systems Full separability criterion for tripartite quantum systems

2006-11-30

arxiv.org/abs/quant-ph/0611292v1

Eur. Phys. J. D. 42, 147 (2007).

Physics

Quantum Physics

5 pages. To be published in Europ. J. D

Scientific paper

10.1140/epjd/e2006-00267-y

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 \textbf{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.

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