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arXiv quant-ph/0001013quant-ph
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单原子脉泽中Dicke超辐射效应

Effects of Dicke superradiance in context of the one-atom maser

N. Nayak, A. S. Majumdar, V. Bartzis

摘要:

本文考虑微脉泽模型,研究了单原子脉泽中Dicke超辐射的影响。该模型包括一个微波腔,两个能级的里德伯原子被成对地抽运。我们考虑一种随机泵浦机制,它允许在任何时候腔中最多存在一对原子。我们分析了目前的系统,称为迪克微脉泽,和一个等效泵浦传统的单原子微脉泽之间的差异。这些差异归因于双原子系统中的Dicke合作性。我们还证明了双原子Dicke微脉泽与单原子级联双光子微脉泽是等价的。通过引入单光子失谐量,本理论进一步描述了真正的双光子微脉塞。详细讨论了单光子失谐量在单原子双光子微脉塞机制中的作用。这使我们指出,双原子腔动力学可以通过一个适当的标度从一个等效的单原子双光子微脉塞的结果进行验证。

英文摘要:

We consider a micromaser model to study the influence of Dicke superradiance in the context of the one-atom maser. The model involves a microwave cavity into which two-level Rydberg atoms are pumped in pairs. We consider a random pump mechanism which allows the presence of at most one pair of atoms in the cavity at any time. We analyze the differences between the present system, called the Dicke micromaser, and an equivalently pumped conventional one-atom micromaser. These differences are attributed to the Dicke cooperativity in the two-atom system. We also show that the two-atom Dicke micromaser is equivalent to a one-atom cascade two-photon micromaser. With the introduction of a one-photon detuning, the present theory further describes a true two-photon micromaser. We discuss in detail the role of one-photon detuning in the mechanism of a one-atom two-photon micromaser. This leads us to point out that the two-atom cavity dynamics can be verified by a proper scaling of the results from an equivalent one-atom two-photon micromaser.

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