Conditions for Local Entanglement Manipulation from Pure States to Mixed States
LIANG Lin-Mei1,2, CHEN Ping-Xing1,2, LI Cheng-Zu1, HUANG Ming-Qiu1,3
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
Conditions for Local Entanglement Manipulation from Pure States to Mixed States
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
Abstract：We discuss the transformation from pure states to mixed states in a bipartite system HAHB 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.
LIANG Lin-Mei;CHEN Ping-Xing;LI Cheng-Zu;HUANG Ming-Qiu;. Conditions for Local Entanglement Manipulation from Pure States to Mixed States[J]. 中国物理快报, 2002, 19(2): 163-165.
LIANG Lin-Mei, CHEN Ping-Xing, LI Cheng-Zu, HUANG Ming-Qiu,. Conditions for Local Entanglement Manipulation from Pure States to Mixed States. Chin. Phys. Lett., 2002, 19(2): 163-165.
2002, Vol. 19 
