原子-腔场系统中弱相干态的几率传送

Probability Teleportation of Weak Coherent State

提出了一个用原子与腔场纠缠态作为量子信道,非贝尔态测量和腔量子电动力学技术实现弱相干态的隐形传送的方案,分析了平均光子数对传送相干态的影响,发现平均光子数在0.25附近时效果最佳.该方案的最大优点是在某种程度上可以避免退相干现象.

A scheme for teleportation of weak entangled coherent state is proposed by using the cavity quantum electrodynamics （QED）. An cavity entangled with an atom is prepared as the quantum channel. This letter decoherent phenomena can be avoided in some degree. The study realizes the probability of successful teleportation via no-Bell Measurement detection. The non-orthogonal properties of the entangled coherent states is reflected. The success of teleportation affected by the mean photons is analyzed.