耦合与强度相关JC模型中的压缩(英文)

Squeezing in IntensityDependent Coupling JaynesCummings Model

采用Ｑ参数的方法研究了耦合与强度有关的ＪＣ模型中光场的压缩．我们发现，当光场原先处于强相干态时，即使原子原先处于基态，压缩也会出现；但如果光场一开始处于热态，即使原子原先处于激发态，压缩也不会出现．我们还发现，相干光场的相位影响了最大压缩量，原子的初态影响了Ｑ参数的相位．

We consider the squeezing of field variables in the intensity dependentcoupling JaynesCummings model.We find that when the initial field is in a coherent state,choosing initial conditions appropriately,squeezing appears even if the atom being pepared in its ground state;however,if the field is initially in thermal state,squeezing doesn't appear even if the atom being prepared in its excited state.We also find that phase of the coherent field affects squeezing.