Abstract

We study spectral properties of fluorescent radiation from a two-level quantum system with broken inversion spatial symmetry, which can be implemented as a model of a one-electron two-level atom whose electric dipole moment operator has permanent unequal diagonal matrix elements. We consider the case of the excitation of this system by a bichromatic laser field consisting of a high-frequency resonance component with the frequency coinciding with the atomic transition frequency and a low-frequency component whose frequency coincides with the Rabi frequency of the high-frequency component. We show that by changing the intensity of the low-frequency component, we can efficiently control spectral properties of the fluorescent radiation of the system in the high-frequency range. We discuss possible methods for the experimental detection and practical use of the effects under study.

中文翻译：

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双色场中极性量子系统的共振荧光

摘要

我们研究了具有破缺反演空间对称性的二能级量子系统的荧光辐射的光谱特性，该系统可以作为单电子二能级原子的模型来实现，其电偶极矩算符具有永久不等对角矩阵元素。我们考虑由双色激光场激发该系统的情况，该双色激光场由频率与原子跃迁频率一致的高频谐振分量和频率与高频拉比频率一致的低频分量组成。成分。我们表明，通过改变低频分量的强度，我们可以有效地控制系统在高频范围内荧光辐射的光谱特性。我们讨论了实验检测和实际使用所研究效应的可能方法。