Optical absorption and activated transport in polaronic systems
Strongly Correlated Electrons
2007-05-23 v2
Abstract
We present exact results for the optical response in the one-dimensional Holstein model. In particular, by means of a refined kernel polynomial method, we calculate the ac and dc electrical conductivities at finite temperatures for a wide parameter range of electron phonon interaction. We analyze the deviations from the results of standard small polaron theory in the intermediate coupling regime and discuss non-adiabaticity effects in detail.
Keywords
Cite
@article{arxiv.cond-mat/0505447,
title = {Optical absorption and activated transport in polaronic systems},
author = {G. Schubert and G. Wellein and A. Weiße and A. Alvermann and H. Fehske},
journal= {arXiv preprint arXiv:cond-mat/0505447},
year = {2007}
}
Comments
7 pages, 8 figures