Double-quantum two-dimensional coherent spectroscopy (MDCS) is a powerful optical method that is used to study optical properties of atomic and complex molecular systems and semiconductor materials. Double-quantum 2D spectra and particularly the peak lineshapes on the spectra can also provide information about many-body interactions. We model 2D spectra by solving the optical Bloch equations and show the effects of correlation between coupled resonances, which also explains the discrepancies between the experimental results reported by multiple groups.

中文翻译：

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双量子多维相干谱的线形分析

双量子二维相干光谱法（MDCS）是一种强大的光学方法，用于研究原子和复杂分子系统以及半导体材料的光学特性。双量子2D光谱，尤其是光谱上的峰线形也可以提供有关多体相互作用的信息。我们通过求解光学Bloch方程对二维光谱进行建模，并显示了耦合共振之间的相关影响，这也解释了多组报告的实验结果之间的差异。