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arXiv 0812.1312quant-ph
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双模三能级原子微激光器的量子轨迹分析

Quantum Trajectory Analysis of the Two-Mode Three-Level Atom Microlaser

Tarek A. Elsayed, Abdulaziz Aljalal

摘要:

研究了三能级原子与双模腔相互作用的单原子激光器(微激光器)。利用适用于开放量子系统的蒙特卡罗模拟量子轨道方法研究了稳态腔场的量子统计性质。研究发现,即使在细致平衡条件不能保证的情况下,也存在稳态解。着重介绍了单模微激光器和双模微激光器的区别。本文研究了单模的二阶关联函数g^2(T),特别是单光子俘获态,导出了它的关联函数的简单公式。研究了用于泵浦微激光腔的原子速度分布对腔场的二阶关联函数、囚禁态和相变的影响。

英文摘要:

We consider a single atom laser (microlaser) operating on three-level atoms interacting with a two-mode cavity. The quantum statistical properties of the cavity field at steady state are investigated by the quantum trajectory method which is a Monte Carlo simulation applied to open quantum systems. It is found that a steady state solution exists even when the detailed balance condition is not guaranteed. The differences between a single mode microlaser and a two-mode microlaser are highlighted. The second-order correlation function g^2(T) of a single mode is studied and special attention is paid to the one-photon trapping state, for which a simple formula is derived for its correlation function. We show the effects of the velocity spread of the atoms used to pump the microlaser cavity on the second-order correlation function, trapping states, and phase transitions of the cavity field.

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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