N two-level atoms in a driven optical cavity:: Quantum dynamics of forward photon scattering for weak incident fields
N two-level atoms in a driven optical cavity:: Quantum dynamics of forward photon scattering for weak incident fields
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DOI：
10.1103/physreva.59.2392
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发表时间：
1999-03-01
影响因子：
2.9
通讯作者：
Xiao, M
中科院分区：
文献类型：
--
作者：
Brecha, RJ;Rice, PR;Xiao, M
我们研究了包含N个二能级原子的驱动光腔传输光的光子统计，重点研究了弱驱动保持极限。从量子涨落的观点来看，这个极限是最令人感兴趣的。我们发现，在强原子场耦合的条件下，即使在腔中有大量原子，各种类型的非经典行为也是可能的，我们称之为腔量子电动力学极限。我们用对弱场有效的纯态形式描述了系统，并使用了由小波动线性化得到的福克-普朗克方程。我们考察了线性化理论适用的条件，并探讨了系统中非经典效应对原子序数、跃迁时间展宽和失谐的敏感性。[s1050 - 2947(99) 04803 - 9]。
We investigate the photon statistics of the light transmitted from a driven optical cavity containing N two-level atoms, with emphasis on the weak driving held limit. This limit is of most interest from the point of view of quantum fluctuations. We find that various types of nonclassical behavior are possible, even with large numbers of atoms in the cavity, under conditions of strong atom-field coupling, which we refer to as the cavity quantum electrodynamics limit. We describe the system with a pure-state formalism valid for weak fields, and also use a Fokker-Planck equation obtained by a small fluctuation linearization. We examine the conditions under which the linearized theory is appropriate, and explore the sensitivity of nonclassical effects in the system to atom number, transit-time broadening, and detunings. [S1050-2947(99)04803-9].