Separability Criterion of Tripartite Qubit Systems

Details Separability Criterion of Tripartite Qubit Systems Separability Criterion of Tripartite Qubit Systems

2004-12-14

arxiv.org/abs/quant-ph/0412104v3

Phys. Rev. A 72, 022333 (2005)

Physics

Quantum Physics

4 pages, 2 figures. to be published in Phys.Rev.A

Scientific paper

10.1103/PhysRevA.72.022333

In this paper, we present a method to construct full separability criteria for tripartite systems of qubits. The spirit of our approach is that a tripartite pure state can be regarded as a three-order tensor that provides an intuitionistic mathematical formulation for the full separability of pure states. We extend the definition to mixed states and given out the corresponding full separability criterion. As applications, we discuss the separability of several bound entangled states, which shows that our criterion is feasible.

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