entanglement;
noise;
Werner states;
preservation of entanglement;
D O I:
10.1016/j.physleta.2005.08.033
中图分类号:
O4 [物理学];
学科分类号:
0702 ;
摘要:
We study the influence of noisy environment on the evolution of two-atomic system in the presence of collective damping. Generation of Werner states as asymptotic stationary states of evolution is described. We also show that for some initial states the amount of entanglement is preserved during the evolution. (c) 2005 Elsevier B.V. All rights reserved.
机构:
China Univ Min & Technol, Sch Phys Sci & Technol, Xuzhou 221116, Peoples R ChinaChina Univ Min & Technol, Sch Phys Sci & Technol, Xuzhou 221116, Peoples R China
Qiu, Liang
Liu, Zhi
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机构:
China Univ Min & Technol, Sch Phys Sci & Technol, Xuzhou 221116, Peoples R ChinaChina Univ Min & Technol, Sch Phys Sci & Technol, Xuzhou 221116, Peoples R China
Liu, Zhi
Pan, Fei
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机构:
China Univ Min & Technol, Sch Phys Sci & Technol, Xuzhou 221116, Peoples R ChinaChina Univ Min & Technol, Sch Phys Sci & Technol, Xuzhou 221116, Peoples R China