Numerically exact Green functions from Hirsch-Fye quantum Monte Carlo simulations
Strongly Correlated Electrons
2007-12-11 v1
Abstract
We present a new method for extracting numerically exact imaginary-time Green functions from standard Hirsch-Fye quantum Monte Carlo (HF-QMC) simulations within dynamical mean-field theory. By analytic continuation, angular resolved spectra are obtained without the discretization bias previously associated with HF-QMC results. The method is shown to be accurate even at very low temperatures (T=W/800 for bandwidth W) in the strongly correlated regime.
Cite
@article{arxiv.0712.1290,
title = {Numerically exact Green functions from Hirsch-Fye quantum Monte Carlo simulations},
author = {N. Blümer},
journal= {arXiv preprint arXiv:0712.1290},
year = {2007}
}
Comments
4 pages, 6 figures