Decay of Correlations in Fermi Systems at Non-zero Temperature
Materials Science
2009-11-10 v1 Statistical Mechanics
Abstract
The locality of correlation functions is considered for Fermi systems at non-zero temperature. We show that for all short-range, lattice Hamiltonians, the correlation function of any two fermionic operators decays exponentially with a correlation length which is of order the inverse temperature for small temperature. We discuss applications to numerical simulation of quantum systems at non-zero temperature.
Keywords
Cite
@article{arxiv.cond-mat/0406348,
title = {Decay of Correlations in Fermi Systems at Non-zero Temperature},
author = {M. B. Hastings},
journal= {arXiv preprint arXiv:cond-mat/0406348},
year = {2009}
}
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3 pages, 0 figures