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arXiv quant-ph/9905098quant-ph
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原子相干体系中的共振荧光:光谱特征

Resonance flourescence in atomic coherent systems: spectral features

S N Sandhya

摘要:

我们研究了四能级梯形系统的共振荧光,并说明了由于量子干涉和原子相干效应而产生的一些新特性。我们发现,在三光子共振条件下,在拉比频率$Ω_1,Ω_2,Ω_3$的参数空间的某些区域内,尽管布居数在各个能级上几乎均匀分布,但发射主要是由线中心的4能级发射的.当在保持$Ω_1 and Ω_2$固定的情况下增加$Ω_3$时,四能级系统“动态地坍缩”为两能级系统。稳态种群和共振荧光从所有水平提供了足够的证据,这种效果。

英文摘要:

We study resonance flourescence in a four level ladder system and illustrate some novel features due to quantum interference and atomic coherence effects. We find that under three photon resonant conditions, in some region of the parameter space of the rabi frequencies $Ω_1,Ω_2,Ω_3$, emission is dominantly by the level 4 at the line center even though there is an almost equal distribution of populations in all the levels. As one increases $Ω_3$ with $Ω_1 and Ω_2$ held fixed, the four level system 'dynamically collapses' to a two level system. The steady state populations and the the resonance flourescence from all the levels provide adequate evidence to this effect.

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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