摘要
利用全量子理论导出了双模SU(1,1)相干态场与四能级原子相互作用系统的态函数,研究了双模SU(1,1)相干态场与四能级原子相互作用中光场的互关联函数、Cauchy-Schwartz不等式及二阶相干性质。讨论了光场与原于间耦合系数和初始光场强度对光场量子动力学特性的影响。数值计算结果表明:光场光子的统计性质依赖于系统的初始状态,光场两模之间总是呈现正相关,而且是非经典相关,光场第一模光子总是呈现反聚束效应,第二模光子交替呈现聚束和反聚束效应。
The state function of the two - mode SU（ 1,1 ） coherent states field interacting with a four - level atom is derived by means of quantum theory. It is studied that the two - mode intensity correlation function, the Cauchy - Schwartz inequality, and the second - order coherence properties for each mode of the light field in the system of the two - mode SU（ 1, 1 ） coherent states field interacting with four - level atom. It is discussed that the influence of the coupling coefficient betweon the light field and atom and the initial intensity of the light field on file quantum dynamics of the light field. The results of the studies indicate that the statistic properties of the photon depend on the initial state of the system, the correlation of the two - mode of light is both positive and non - classical, the photon anti - bunching of the first mede appear at all time, and the photon bunching and anti - bunching of the second mode appear alternately.
出处
《激光杂志》
CAS
CSCD
北大核心
2009年第1期17-19,共3页
Laser Journal
基金
江西师大青年成长基金(1339)
