CAJ | 학술논문

计算了耗散腔中两个非全同原子与光场在大失谐相互作用下原子的密度算符间距,并讨论了不同平均光子数、腔场衰减系数以及不同耦合系数之比对原子密度算符间距的影响。结果表明：在耗散腔中,原子的密度算符间距开始呈减幅振荡,经一段时间后呈等幅周期振荡。随两原子耦合系数比增大,原子态密度算符间距的振荡剧烈程度和周期均减小,振幅增大,当腔场的衰减系数增大时,其达等幅振动所用时间迅速缩短;但随光场平均光子数增加其振荡幅度减小。
계산료모산강중량개비전동원자여광장재대실해상호작용하원자적밀도산부간거,병토론료불동평균광자수、강장쇠감계수이급불동우합계수지비대원자밀도산부간거적영향。결과표명：재모산강중,원자적밀도산부간거개시정감폭진탕,경일단시간후정등폭주기진탕。수량원자우합계수비증대,원자태밀도산부간거적진탕극렬정도화주기균감소,진폭증대,당강장적쇠감계수증대시,기체등폭진동소용시간신속축단;단수광장평균광자수증가기진탕폭도감소。
The distance between density operators of the atoms is calculated in a dissipative cavity under the large detuning limit.It is affected by the different average photon number,damping coefficient,the ratio of coupling coefficients.The results show that the distance between density operators of atoms fluctuates damply and periodically then it fluctuates with equal amplitude.With the increasing of the mean photons number,the ratio of coupling coefficients and damping coefficient,the period of the distance between density operators of atom is decreasing,the time for arriving at equal amplitude fluctuation is shortening and the amplitude of fluctuation is decreasing.