辐射压力力中的集体效应
Collective effects in the radiation pressure force
摘要：
讨论了漫散射、米氏散射和合作散射对冷原子云质心辐射压力的影响。即使一个平均场的Ancillary（“定时Dicke状态”），以前来自合作散射的方法，已被证明是令人满意的同意与实验，漫散射也很好地描述了大的原子云上的辐射压力力的大多数功能。我们详细比较了一个不相干的，随机行走模型的光子和衍射方法的基础上相干耦合偶极子更完整的描述。我们表明，合作散射的方法，虽然它提供了一个相当完整的描述的散射过程，是没有必要解释以前的实验上的辐射压力。
英文摘要：
We discuss the role of diffuse, Mie and cooperative scattering on the radiation pressure force acting on the center of mass of a cloud of cold atoms. Even though a mean-field Ansatz (the `timed Dicke state'), previously derived from a cooperative scattering approach, has been shown to agree satisfactorily with experiments, diffuse scattering also describes very well most features of the radiation pressure force on large atomic clouds. We compare in detail an incoherent, random walk model for photons and a diffraction approach to the more complete description based on coherently coupled dipoles. We show that a cooperative scattering approach, although it provides a quite complete description of the scattering process, is not necessary to explain the previous experiments on the radiation pressure force.
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