Conditions for Local Entanglement Manipulation from Pure States to Mixed States

Chin. Phys. Lett.

2002, Vol. 19

Issue (2): 163-165 DOI:

Original Articles

Conditions for Local Entanglement Manipulation from Pure States to Mixed States

LIANG Lin-Mei^1,2;CHEN Ping-Xing^1,2;LI Cheng-Zu¹;HUANG Ming-Qiu^1,3

¹Department of Applied Physics, National University of Defense Technology, Changsha 410073 ²Laboratory of Quantum Communication and Quantum Computation University of Science and Technology of China, Hefei 230026 ³CCAST (World Laboratory) P.O. Box 8730, Beijing 100080

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LIANG Lin-Mei, CHEN Ping-Xing, LI Cheng-Zu et al 2002 Chin. Phys. Lett. 19 163-165

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Abstract We discuss the transformation from pure states to mixed states in a bipartite system H_AH_B and provide the sufficient condition for this transformation. We also provide a necessary and sufficient condition for one class of this transformation. Meanwhile, the method of realization for the transformation from pure states to mixed states is also present. Furthermore, we brief discuss the application.

Keywords: 03.67.-a 03.65.Bz

Published: 01 February 2002

PACS:	03.67.-a	(Quantum information)
	03.65.Bz

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https://cpl.iphy.ac.cn/ OR https://cpl.iphy.ac.cn/Y2002/V19/I2/0163

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