与偶相干态相互作用的二能级原子系统的非经典性质

Nonclassical Properties in a System of a Two Level Atom Interacting with an Even Coherent State

本文研究偶相干态场与单个二能级原子相互作用后系统的非经典性质 .研究表明 ,当原子初始时处于基态或相干迭加态时 ,与偶相干态场耦合的双光子Jaynes Cummings模型可呈现二阶压缩增强效应。

The nonclassical properties of a two Ievel atom interacting with a single mode even coherent state field are investigated.It is shown that the normal squeezing,amplitude squared squeezing and antibunching can be exhibited in the two photon Jaynes cummings model when the atom is initially either in the ground state or in a coherent superposition of its excited and ground states.