Lang-Firsov approaches to polaron physics: From variational methods to unbiased quantum Monte Carlo simulations
Strongly Correlated Electrons
2015-06-25 v2
Abstract
We review variational and quantum Monte Carlo approaches based on (extended) Lang-Firsov transformations of the Hamiltonian. Derivations for one, two and many electrons are given, and results for the Holstein polaron, the Holstein-Hubbard bipolaron, and the spinless Holstein model at finite carrier densities are presented.
Keywords
Cite
@article{arxiv.cond-mat/0611048,
title = {Lang-Firsov approaches to polaron physics: From variational methods to unbiased quantum Monte Carlo simulations},
author = {Martin Hohenadler and Wolfgang von der Linden},
journal= {arXiv preprint arXiv:cond-mat/0611048},
year = {2015}
}
Comments
40 pages, 15 figures, to be published in Polarons in Advanced Materials, Ed. A. S. Alexandrov (Canopus/Springer Publishing, Bristol) (2007); V2: typo in authors list corrected