Many-polaron problem by cluster perturbation theory
arXiv:cond-mat/0505559 · doi:10.1016/j.physb.2006.01.026
Abstract
The carrier-density dependence of the photoemission spectrum of the Holstein many-polaron model is studied using cluster perturbation theory combined with an improved cluster diagonalization by Chebychev expansion.
2 pages, 1 figure, final version