Communications in Theoretical Physics

Separability of Pure and Mixed States of the Quantum Network of Four Nodes

Qian Shang-Wu, Gu Zhi-Yu

Published Oct 15, 2003• 3 citations

Abstract

This article discusses the separability of the pure and mixed states of the quantum network of four nodes by means of the criterion of entanglement in terms of the covariance correlation tensor in quantum network theory.

DOI: 10.1088/0253-6102/40/4/395

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