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Communications in Theoretical Physics

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

Gu Zhi-Yu, Qian Shang-Wu

Published Apr 15, 2003• 7 citations
Publisher

Abstract

This article discusses the separability of the pure states and mixed states of the quantum network of two nodes by means of the criterion of no entanglement in terms of the covariance correlation tensor in quantum network theory, i.e. for a composite system consisting of two nodes. The covariance correlation tensor is equal to zero for all possible and .

DOI
10.1088/0253-6102/39/4/421

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This article discusses the separability of the pure states and mixed states of the quantum network of two nodes by means of the criterion of no entanglement in terms of the covariance correlation tensor in quantum network theory, i.e. for a composite system consisting of two nodes. The covariance correlation tensor is equal to zero for all possible and .