Quantum phase-space simulations of fermions and bosons
Other Condensed Matter
2009-11-11 v1
Abstract
We introduce a unified Gaussian quantum operator representation for fermions and bosons. The representation extends existing phase-space methods to Fermi systems as well as the important case of Fermi-Bose mixtures. It enables simulations of the dynamics and thermal equilibrium states of many-body quantum systems from first principles. As an example, we numerically calculate finite-temperature correlation functions for the Fermi Hubbard model, with no evidence of the Fermi sign problem.
Keywords
Cite
@article{arxiv.cond-mat/0506040,
title = {Quantum phase-space simulations of fermions and bosons},
author = {P. D. Drummond and J. F. Corney},
journal= {arXiv preprint arXiv:cond-mat/0506040},
year = {2009}
}
Comments
4 pages, 2 figures, to appear in Comp. Phys. Comm