利用大失谐Jaynes-Cummings模型实现原子的隐形传态

提出了一个未知原子的隐形传态方案,它是通过原子与腔场大失谐相互作用实现的.方案中,两原子缠结的EPR态作为联系发送者与接收者之间的量子信息通道,将欲传送的未知原子和EPR态中的一个原子依次注入到初始制备于相干态 |α>的腔场,然后分别对两原子和腔场进行联合测量,通过经典信息通道将测量结果传递给接收者.这样,接收者只要对EPR的另一个原子执行相应的幺正操作就能重构未知原子态.

TELEPORTATION OF AN UNKNOWN ATOMIC STATE VIA THE JAYNES-CUMMINGS MODEL WITH LARGE DETUNING

A scheme is proposed for teleportation of an unknown atomic state. It is based on the Jaynes-Cummings model with large detuning of the atom-cavity-field. In the proposed scheme two-atom entangled EPR state is used as quantum channel between a sender and a receiver, the teleported unknown atom and one atom of EPR state are sequentially sent through a cavity in the initially coherent state |α〉 at the sender's site, the information of the joint measurement on the two atoms and cavity is transmitted to the receiver through a classical channel and thus the initial state of the teleported unknown atom on the second atom of the correlated pair can be reconstructed by performing a relevant unitary transformation at the receiver's site.