%0 Journal Article
%T PERIODIC ENTANGLEMENT BETWEEN THE INTERNAL AND EXTERANL DEGREE OF FREEDOM OF A TRAPPED ION IN A STANDING WAVE LASER<br>驻波激光场中囚禁离子内外自由度的周期纠缠
%A FANG MAO-FA
%A LIU XIANG
%A <br>方卯发
%A 刘翔
%J 物理学报
%D 2001
%I 
%X We have investigated the quantum entropy and entanglement of the internal and external degrees of freedom of a trapped ion in a standing wave laser by transforming the Hamiltonian to that in the Jaynes-Cummings system for the bare basis of the trapped ion under the Lamb-Dicke limit. Under the off-resonant condition, we have found the periodic entanglement between the internal and external degrees of freedom of a trapped ion.
%K standing wave laser
%K trapped ion
%K internal and external degree of freedom
%K periodic entanglement<br>驻波激光场
%K 囚禁离子
%K 内外自由度
%K 周期纠缠
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=6E709DC38FA1D09A4B578DD0906875B5B44D4D294832BB8E&cid=47EA7CFDDEBB28E0&jid=29DF2CB55EF687E7EFA80DFD4B978260&aid=D5A9863FC17C116E&yid=14E7EF987E4155E6&vid=771152D1ADC1C0EB&iid=59906B3B2830C2C5&sid=1753BFD24BFEB058&eid=054C27D6C3EE1321&journal_id=1000-3290&journal_name=物理学报&referenced_num=5&reference_num=25