利用两能级原子与腔场的相互作用转移纠缠

分析了大失谐情况下一个两能级原子和相干态腔场相互作用的特点；讨论了利用两能级原子和相干态腔场相互作用制备纠缠相干态的方法；提出了一个关于纠缠相干态的纠缠转移的方案。在这个纠缠转移的方案里，通讯伙伴之间使用的量子信道是由两个振幅相同位相相反的相干态构成的纠缠态。通过使用两能级原子和腔肠相干态的相互作用和两模正交态测量并在经典信息的帮助下完成了三个通讯伙伴之间的纠缠转移。随着近来腔量子电动力学技术的发展，这个方案是能够被实行的。

Diverting entanglement via two-level atom interacting

Base on the dispersive atom-cavity field interaction,the scheme for preparing the entangled coherent state is discussed.An experimentally feasible protocol for realizing entanglement diversion of the entangled coherent states by using a two-level atom interacting with caving fields is proposed.In this amplitude but a phase difference π is utilized as the quantum channel.The process of the entanglement diversion is implemented by using the two-level atom interacting with caving fields,two-modes orthogonal states measurement and with the help of classical information.With the present development of cavity quantum electrodynamics (QED) techniques,the scheme can be achieved.