Continuous-Time Quantum Monte Carlo Algorithm for the Lattice Polaron
强关联电子
2009-10-31 v2
摘要
An efficient continuous-time path-integral Quantum Monte Carlo algorithm for the lattice polaron is presented. It is based on Feynman's integration of phonons and subsequent simulation of the resulting single-particle self-interacting system. The method is free from the finite-size and finite-time-step errors and works in any dimensionality and for any range of electron-phonon interaction. The ground-state energy and effective mass of the polaron are calculated for several models. The polaron spectrum can be measured directly by Monte Carlo, which is of general interest.
引用
@article{arxiv.cond-mat/9808155,
title = {Continuous-Time Quantum Monte Carlo Algorithm for the Lattice Polaron},
author = {P E Kornilovitch},
journal= {arXiv preprint arXiv:cond-mat/9808155},
year = {2009}
}
备注
5 pages, 4 figures, published version