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arXiv quant-ph/0309133quant-ph
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强耦合下单原子Laser的理论与实验比较

Comparison of Theory and Experiment for a One-Atom Laser in a Regime of Strong Coupling

A. D. Boozer, A. Boca, J. R. Buck, J. McKeever, H. J. Kimble

摘要:

我们最近的论文报道了在强耦合区实现单原子激光的实验结果(参考文献[1])。在这里,我们提供了相关的支持理论分析,我们的实验的操作制度。通过一个简化的四态模型,研究了相干外场泵浦下腔内单个原子从传统激光理论进入强耦合区的过程。四态模型也被用来描述真空拉比分裂和计算光谱。接下来,我们扩展这个模型,将相关的塞曼超精细状态,以及一个简单的描述中存在的偏振梯度和原子运动的泵浦过程。利用这个扩展的模型与文献[1]中的测量结果进行了定量比较,得到了腔内光子数与泵浦强度的关系曲线,以及用强度关联函数g2(τ)表示的光子统计量。

英文摘要:

Our recent paper reports the experimental realization of a one-atom laser in a regime of strong coupling (Ref. [1]). Here we provide the supporting theoretical analysis relevant to the operating regime of our experiment. By way of a simplified four-state model, we investigate the passage from the domain of conventional laser theory into the regime of strong coupling for a single intracavity atom pumped by coherent external fields. The four-state model is also employed to exhibit the vacuum-Rabi splitting and to calculate the optical spectrum. We next extend this model to incorporate the relevant Zeeman hyperfine states as well as a simple description of the pumping processes in the presence of polarization gradients and atomic motion. This extended model is employed to make quantitative comparisons with the measurements of Ref. [1] for the intracavity photon number versus pump strength and for the photon statistics as expressed by the intensity correlation function g2(tau).

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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