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本文采用广义Wigner分布函数的Fokker-Planck方程的方法,讨论了劣腔极限下失谐双光子光学双稳系统的原子压缩效应,得到压缩区在失谐参数△-θ平面的分布,发现在足够大的原子失谐条件下,原子算符R2也可能出现压缩效应。The atom squeezing effect for off-resonant two-photon optical bistability in bad-cavity limit is studied by means of Fokker-Planck equation of the generalized Wigner distribution. The distribution of the squeezing region in Δ-θ plane is described. As atom-detuning is sufficiently large, the squeezing effect of the atom operator R2 may appear.
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