Fock态腔场与Bell态原子相互作用过程中光场的量子特性

Quantum properties of the light field of two atoms in Bell states in a cavity

采用时间演化算符和数值计算方法,研究了Fock态腔场与2个全同二能级Bell态原子在偶极共振相互作用过程中光场二阶相干和光场压缩的时间演化特性。结果表明:当2个原子初始处于不同的Bell态时,系统光场二阶相干和光场压缩的时间演化特性不同,根据这些特征,可以部分甄别双原子Bell态。

Presented in the paper is the time evolution of the squeezing and second-order coherence properties of the light field in the system of two-level entangled atoms in Bell states interacting resonantly with a single-mode cavity field in the Fock state. According to the characterizations, Bell states composed of two identical atoms can be partially distinguished.