The quasiclassical kinetic theory of optical forces has been applied to describe the kinetics of accumulation, deep trapping and cooling of particles in a bichromatic dark trap (BDT), which is placed into a reservoir with a thermal gas at room temperature containing an admixture of resonant atoms. BDT (proposed in our previous works, Krasnov 2016 Laser Phys. 26 105 501, 2017 27 085 501) is a multiple-optical-beam dark trap, in which rectified gradient forces in a bichromatic light field are used to manipulate the particles. The purpose of the present study is to investigate the possibility of direct BDT loading from the equilibrium gas mixture which will result in trapping and cooling of a sufficiently great amount of atoms by BDT. We derived a reduced Fokker-Planck equation in the energy space (for the Wigner particle distribution function) including the collision term. This equation takes into account the optical trapping force, its quantum fluctuations, particle loss from the...

中文翻译：

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将双色暗阱浸入缓冲气体中，并与共振原子混合

光学力的准经典动力学理论已被用于描述双色暗阱（BDT）中粒子的聚集，深陷和冷却动力学，该双色暗阱在室温下与热气一起放入储层中，其中包含共振的混合物原子。BDT（在我们之前的工作中提出，Krasnov 2016 Laser Phys。26 105 501，2017 27 085 501）是一种多光束暗阱，其中使用了双色光场中的校正梯度力来操纵粒子。本研究的目的是研究平衡气体混合物中直接BDT负载的可能性，该负载将导致BDT捕获和冷却足够多的原子。我们在能量空间中（针对维格纳粒子分布函数）导出了一个包含碰撞项的简化Fokker-Planck方程。该方程式考虑了光俘获力，其量子涨落，因...