%0 Journal Article
%T Entanglement properties in a system of a pairwise entangled state
%A Liu Tang-Kun
%A Cheng Wei-Wen
%A Shan Chuan-Ji
%A Gao Yun-Feng
%A Wang Ji-Suo
%A <br>刘堂昆
%A 程维文
%A 单传家
%A 高云峰
%A 王继锁
%J 中国物理 B
%D 2007
%I 
%X Based on the quantum information theory, this paper has investigated the entanglement properties of a system which is composed of the two entangled two-level atoms interacting with the two-mode entangled coherent fields. The influences of the strength of light field and the two parameters of entanglement between the two-mode fields on the field entropy and on the negative eigenvalues of partial transposition of density matrix are discussed by using numerical calculations. The result shows that the entanglement properties in a system of a pairwise entangled states can be controlled by appropriately choosing the two parameters of entanglement between the two-mode entangled coherent fields and the strength of two light fields respectively.
%K field entropy
%K negative eigenvalues
%K two entangled atoms
%K two-mode entangled coherent fields<br>熵
%K 物理理论
%K 信息理论
%K 量子论
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=6E709DC38FA1D09A4B578DD0906875B5B44D4D294832BB8E&cid=47EA7CFDDEBB28E0&jid=CD8D6A6897B9334F09D8D1648C376FB4&aid=825C8043EFAA127962D6FF1496767940&yid=A732AF04DDA03BB3&vid=7801E6FC5AE9020C&iid=59906B3B2830C2C5&sid=A8A69AA8280C7C71&eid=92B55B2B427E04CC&journal_id=1009-1963&journal_name=中国物理&referenced_num=0&reference_num=0