期刊
ANNALS OF PHYSICS
卷 327, 期 2, 页码 292-296出版社
ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/j.aop.2011.08.004
关键词
Preservation; Entanglement; Concurrence
资金
- National Science Foundation of China [10874013, 11174024, 10974247]
A theoretical scheme for preserving the entanglement in a two-qubit-spin coupled system in the presence of Dzyaloshinskii-Moriya (DM) anisotropic antisymmetric interaction is proposed. On the basis of a sequence of operations performed periodically on the system, the scheme can preserve the entanglement of the system starting from any initial state with any desired high precision for any desired long duration. Crown Copyright (C) 2011 Published by Elsevier Inc. All rights reserved.
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