%0 Journal Article
%T The evolution property of three-body entanglement measure in Tavis-Cummings mode l<br>Tavis-Cummings模型中三体纠缠态纠缠量的演化特性
%A Zuo Zhan-Chun
%A Xia Yun-Jie
%A <br>左战春
%A 夏云杰
%J 物理学报
%D 2003
%I 
%X This paper studies the quantum entanglement of the Tavis-Cummings model for two steady identical two-level atoms interac-ting with a single-mode field. Whe n the field is vacuum and the two atoms stay in Einstein-Podolsky-Rosem entangle d state or disentangled state initially, we obtain that the system will evol ve to a three-body approximate W entangled state. The entanglement measure will change with the variation of system initial state, coupling coefficients, detuni ng degree and atomic population inversion. It should be noted that the atomic co upling coefficient exhibits the nonlinear effect and the entanglement measure os cillates periodically in accordance with atomic population inversion.
%K W entangled state
%K entanglement measure
%K population inversion<br>W纠缠态，
%K 纠缠量，
%K 反转粒子数
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=6E709DC38FA1D09A4B578DD0906875B5B44D4D294832BB8E&cid=47EA7CFDDEBB28E0&jid=29DF2CB55EF687E7EFA80DFD4B978260&aid=14A7BE0FD4247A3C&yid=D43C4A19B2EE3C0A&vid=286FB2D22CF8D013&iid=708DD6B15D2464E8&sid=0F150A05AE10A373&eid=349E8AF2BCA314C4&journal_id=1000-3290&journal_name=物理学报&referenced_num=24&reference_num=18