【摘要】 应用偏振光的量子理论和斯托克斯算符研究了无克尔媒质和存在克尔媒质情况下 ,光在与原子相互作用过程中偏振态的演化 .研究了偏振光中斯托克斯参量的涨落及其压缩的非经典行为 .偏振椭圆、量子光学中的偏振度和斯托克斯参量的信噪比也得到了讨论 .结果表明斯托克斯参量及其涨落在时间演化中呈现出被调制的振荡 ,这些振荡表现出间歇地崩塌和恢复 .在与原子的相互作用过程中 ,光的偏振椭圆不随时间变化 ,但偏振度却随时间出现振荡 .克尔媒质对这些振荡演化有很大影响 .更多还原

【Abstract】 The quantum theory of polarizing light and the Stokes operators are applied to t he study of the evolutions of polarization states of light in the processes of interaction with atoms in the case with or without Kerr medium. The non_classic behavior in the fluctuations of St okes parameters for the polarizing light and their squeezing are investigated. The polarization elli pse, the degree of polarization of the field in quantum optics and the signal_to_noise ratio in the Stokes parameters are discussed. It is shown that the modulated oscillations appear in the evoluti ons of Stokes parameters and their fluctuations. These oscillations collapse and revive interm ittently. The polarization ellipse does not vary in the interaction with atoms but the degree of polarization will oscillate. Kerr medium changes these oscillations distinctly.更多还原