%0 Journal Article
%T Effects of dipole--dipole interaction on entanglement transfer<br>Effects of dipole-dipole interaction on entanglement transfer
%A Guo Hong
%A Xiong Heng-Na
%A <br>郭红
%A 熊恒娜
%J 中国物理 B
%D 2008
%I 
%X A system consisting of two different atoms interacting with a two-mode vacuum, where each atom is resonant only with one cavity mode, is considered. The effects of dipole--dipole ({dd}) interaction between two atoms on the atom--atom entanglement and mode--mode entanglement are investigated. For a weak {dd} interaction, when the atoms are initially separable, the entanglement between them can be induced by the {dd} interaction, and the entanglement transfer between the atoms and the modes occurs efficiently; when the atoms are initially entangled, the entanglement transfer is almost not influenced by the {dd} interaction. However, for a strong {dd} interaction, it is difficult to transfer the entanglement from the atoms to the modes, but the atom--atom entanglement can be maintained when the atoms are initially entangled.
%K dipole--dipole (dd) interaction
%K concurrence
%K entanglement transfer<br>双偶极子
%K 交互作用
%K 纠结转移
%K 物理研究
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=6E709DC38FA1D09A4B578DD0906875B5B44D4D294832BB8E&cid=47EA7CFDDEBB28E0&jid=CD8D6A6897B9334F09D8D1648C376FB4&aid=C1995B2F552FBE94B8A23B13A8AB27E5&yid=67289AFF6305E306&vid=BCA2697F357F2001&iid=38B194292C032A66&sid=E151839C3C081609&eid=1BE4748776BF02C4&journal_id=1009-1963&journal_name=中国物理&referenced_num=0&reference_num=37