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Theory of intersubband resonance fluorescence

机译:子带间共振荧光理论

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The fluorescence spectrum of a strongly pumped two-level system is characterized by the Mollow triplet that has been observed in a variety of systems, ranging from atoms to quantum dots and superconducting qubits. We theoretically studied the fluorescence of a strongly pumped intersubband transition in a quantum well. Our results show that the many-electron nature of such a system leads to a modification of the usual Mollow theory. In particular, the intensity of the central peak in the fluorescence spectrum becomes a function of the electron coherence, allowing access to the coherence time of a two-dimensional electron gas through a fluorescence intensity measurement.
机译:强烈泵浦的两能级系统的荧光光谱的特征在于,在从原子到量子点以及超导量子位的各种系统中都观察到了莫洛三重态。我们从理论上研究了量子阱中强烈泵浦的子带间跃迁的荧光。我们的结果表明,这种系统的多电子性质导致对通常的Mollow理论的修改。特别地,荧光光谱中的中心峰的强度成为电子相干性的函数,从而允许通过荧光强度测量获得二维电子气的相干时间。

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