Abstract

Photon recoil upon light scattering by a Bose–Einstein condensate (BEC) of a dilute atomic gas is analyzed theoretically accounting for a weak interatomic interaction. Our approach is based on the Gross–Pitaevskii equation for the condensate, which is coupled to the Maxwell equation for the field. The dispersion relations of recoil energy and momentum are calculated, and the effect of weak nonideality of the condensate on the photon recoil is ubraveled. A good agreement between the theory and experiment [7] on the measurement of the photon recoil momentum in a dispersive medium is demonstrated.

中文翻译：

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玻色-爱因斯坦稀有气体冷凝物在光散射中的光子反冲

摘要

理论上分析了稀原子气体的玻色-爱因斯坦凝聚物（BEC）散射光后产生的光子反冲，这是由于原子间相互作用弱所引起的。我们的方法基于凝析油的Gross–Pitaevskii方程，该方程与油田的Maxwell方程耦合。计算了反冲能量和动量的色散关系，并探讨了凝结液的弱非理想性对光子反冲的影响。在分散介质中光子反冲动量的测量上，理论和实验[7]之间有很好的一致性。