Exciton Beats in GaAs Quantum Wells: Bosonic Representation and Collective Effects
Mesoscale and Nanoscale Physics
2009-10-31 v1
Abstract
We discuss light-heavy hole beats observed in transient optical experiments in GaAs quantum wells in terms of a free-boson coherent state model. This approach is compared with descriptions based on few-level representations. Results lead to an interpretation of the beats as due to classical electromagnetic interference. The boson picture correctly describes photon excitation of extended states and accounts for experiments involving coherent control of the exciton density and Rayleigh scattering beating.
Keywords
Cite
@article{arxiv.cond-mat/9909232,
title = {Exciton Beats in GaAs Quantum Wells: Bosonic Representation and Collective Effects},
author = {J. Fernandez-Rossier and C. Tejedor and R. Merlin},
journal= {arXiv preprint arXiv:cond-mat/9909232},
year = {2009}
}
Comments
4 pages, no figures. Accepted for publication in Solid State Communications