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arXiv quant-ph/0010061quant-ph
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腔辅助原子冷却的半经典理论

Semiclassical theory of cavity-assisted atom cooling

Peter Domokos, Peter Horak, Helmut Ritsch

摘要:

提出了一个系统的半经典模型,用于模拟强耦合二能级原子与受驱动的高精细度光腔的动力学。从原子-光场组合Wigner函数的Fokker-Planck方程出发,导出了原子运动和腔场的随机微分方程。相应的噪声源表现出原子动量涨落与腔场相位正交噪声之间的强关联。该模型提供了一个有效的工具,以调查本地化的影响,以及冷却和捕获时间。此外,我们还可以连续地研究从少光子量子场到大相干场振幅的经典极限的跃迁。

英文摘要:

We present a systematic semiclassical model for the simulation of the dynamics of a single two-level atom strongly coupled to a driven high-finesse optical cavity. From the Fokker-Planck equation of the combined atom-field Wigner function we derive stochastic differential equations for the atomic motion and the cavity field. The corresponding noise sources exhibit strong correlations between the atomic momentum fluctuations and the noise in the phase quadrature of the cavity field. The model provides an effective tool to investigate localisation effects as well as cooling and trapping times. In addition, we can continuously study the transition from a few photon quantum field to the classical limit of a large coherent field amplitude.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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