POPULATION TRAPPING IN 2-LEVEL MODELS - SPECTRAL AND STATISTICAL PROPERTIES

被引:28
作者
CIRAC, JI
SANCHEZSOTO, LL
机构
[1] Departamento de Optica, Facultad de Ciencias Físicas, Universidad Complutense
来源
PHYSICAL REVIEW A | 1991年 / 44卷 / 05期
关键词
D O I
10.1103/PhysRevA.44.3317
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
The interaction of a two-level atom with a single-mode radiation field through multiphoton transitions is studied in terms of the dressed-state formalism. It is shown that when only certain dressed states are initially excited, population trapping occurs. We particularize these results for some well-known models of one- and two-photon transitions. Photon statistics of the cavity mode is analyzed in terms of the quasiprobability distribution Q(alpha). It is shown that when population trapping occurs some two-time correlation functions become stationary, which allows one to obtain the resonance spectrum as the Fourier transform of the two-time dipole autocorrelation function.
引用
收藏
页码:3317 / 3324
页数:8
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