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arXiv 0812.3689quant-ph
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腔诱导原子冷却中的Dicke型能级交叉:另一种超辐射冷却

Dicke-Type Energy Level Crossings in Cavity-Induced Atom Cooling: Another Superradiant Cooling

Masao Hirokawa

摘要:

本文研究了腔中二能级原子与光子耦合系统的能谱分析。结果表明,当系统的原子-腔相互作用在弱耦合区和强耦合区之间变化时,会发生Dicke型能级交叉。利用这种交叉现象,我们发展了Ritsch小组提出的腔诱导原子冷却的思想,并为Domokos和Ritsch提出的另一种超辐射冷却的可能机制奠定了数学基础。我们的超辐射冷却过程可以很好地通过腔衰减和控制原子的位置来实现,至少在(数学)理论上是这样,即使既没有原子吸收也没有原子发射光子。

英文摘要:

This paper is devoted to energy-spectral analysis for the system of a two-level atom coupled with photons in a cavity. It is shown that the Dicke-type energy level crossings take place when the atom-cavity interaction of the system undergoes changes between the weak coupling regime and the strong one. Using the phenomenon of the crossings we develop the idea of cavity-induced atom cooling proposed by the group of Ritsch, and we lay mathematical foundations of a possible mechanism for another superradiant cooling in addition to that proposed by Domokos and Ritsch. The process of our superradiant cooling can function well by cavity decay and by control of the position of the atom, at least in (mathematical) theory, even if there is neither atomic absorption nor atomic emission of photons.

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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