{ "id": "cond-mat/0308482", "version": "v1", "published": "2003-08-25T08:44:16.000Z", "updated": "2003-08-25T08:44:16.000Z", "title": "Optical spectra of quantum dots: effects of non-adiabaticity", "authors": [ "J. T. Devreese", "V. M. Fomin", "E. P. Pokatilov", "V. N. Gladilin", "S. N. Klimin" ], "comment": "4 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", "journal": "Phys. Stat. Sol. (c) 0 (2003) 1189", "categories": [ "cond-mat.mes-hall" ], "abstract": "It 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.", "revisions": [ { "version": "v1", "updated": "2003-08-25T08:44:16.000Z" } ], "analyses": { "keywords": [ "semiconductor quantum dots", "adiabatic approximation", "adiabatic approach", "adequate description", "account non-adiabaticity" ], "tags": [ "journal article" ], "note": { "typesetting": "TeX", "pages": 4, "language": "en", "license": "arXiv", "status": "editable" } } }