Acta Physica Sinica

ENTANGEMENT OF QUANTUM PURE STATES

SHI MING-JUN, Du Jiang-Feng, Zhu Dongpei, (1)中国科学技术大学近代物理系，合肥 230027; (2)中国科学技术大学近代物理系，合肥 230027；中国科学技术大学量子通讯和量子计算开放实验室，合肥 230026

Published Jan 1, 2000• 4 citations

Publisher

Abstract

Entangled state and entanglement have important action in quantum computation and quantum communication.In this paper,we consider the quantum pure state,show its properties when time reversal transformation is used,and study the representation of corresponding density matrix in Hilbert-Schmidt space.Finally we give a geometrical interpretation for entanglement.

DOI: 10.7498/aps.49.825

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