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arXiv · 1506.07972

Theory of intersubband resonance fluorescence

Nathan Shammah·Simone De Liberato
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Abstract

The fluorescence spectrum of a strongly pumped two level system is characterised 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.

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Nathan Shammah, Simone De Liberato. 2015-11-13. Theory of intersubband resonance fluorescence. https://doi.org/10.1103/physrevb.92.201402

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