Mobile small polaron
强关联电子
2009-10-31 v2 超导电性
摘要
Extending the Froehlich polaron problem to a discrete ionic lattice we study a polaronic state with a small radius of the wave function but a large size of the lattice distortion. We calculate the energy dispersion and the effective mass of the polaron with the 1/\lambda perturbation theory and with the exact Monte Carlo method in the nonadiabatic and adiabatic regimes, respectively. The ``small'' Froehlich polaron is found to be lighter than the small Holstein polaron by one or more orders of magnitude.
关键词
引用
@article{arxiv.cond-mat/9808198,
title = {Mobile small polaron},
author = {A. S. Alexandrov and P. E. Kornilovitch},
journal= {arXiv preprint arXiv:cond-mat/9808198},
year = {2009}
}
备注
4 pages, 4 figures, published version