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Near-field spectra of quantum well excitons with non-Markovian phonon scattering

G. Mannarini·R. Zimmermann
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Abstract

The excitonic absorption spectrum for a disordered quantum well in presence of exciton-acoustic phonon interaction is treated beyond the Markov approximation. Realistic disorder exciton states are taken from a microscopic simulation, and the deformation potential interaction is implemented. The exciton Green's function is solved with a self energy in second order Born quality. The calculated spectra differ from a superposition of Lorentzian lineshapes by enhanced inter-peak absorption. This is a manifestation of pure dephasing which should be possible to measure in near-field experiments.

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BibTeXRIS

G. Mannarini, R. Zimmermann. 2006-04-03. Near-field spectra of quantum well excitons with non-Markovian phonon scattering. https://doi.org/10.1103/physrevb.73.115325

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