Optical spectra of quantum dots: effects of non-adiabaticity

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dc.creatorDevreese, J. T.
dc.creatorFomin, V. M.
dc.creatorPokatilov, E. P.
dc.creatorGladilin, V. N.
dc.creatorKlimin, S. N.
dc.date2003-08-25
dc.date.accessioned2026-07-07T02:53:04Z
dc.date.available2026-07-07T02:53:04Z
dc.descriptionIt is shown that in many cases an adequate description of optical spectra of semiconductor quantum dots requires a treatment beyond the commonly used adiabatic approximation. We have developed a theory of phonon-assisted optical transitions in semiconductor quantum dots, which takes into account non-adiabaticity of the exciton-phonon system. Effects of non-adiabaticity lead to a mixing of different exciton and phonon states that provides a key to the understanding of surprisingly high intensities of phonon satellites observed in photoluminescence spectra of quantum dots. A breakdown of the adiabatic approximation gives an explanation also for discrepancies between the serial law, observed in multi-phonon optical spectra of some quantum dots, and the Franck-Condon progression, prescribed by the adiabatic approach.
dc.description4 pages, 3 figures, E-mail addresses: devreese@uia.ua.ac.be, fomin@uia.ua.ac.be, pokatilov@add.moldova.su, gladilin@uia.ua.ac.be, klimin@uia.ua.ac.be
dc.identifierhttps://arxiv.org/abs/cond-mat/0308482
dc.identifierhttp://arxiv.org/abs/cond-mat/0308482
dc.identifierPhys. Stat. Sol. (c) 0 (2003) 1189
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/22073
dc.subjectMesoscale and Nanoscale Physics
dc.titleOptical spectra of quantum dots: effects of non-adiabaticity
dc.typetext

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