Lattice gas models derived from effective field theory
Nuclear Theory
2008-11-26 v1
Abstract
We start from a low-energy effective field theory for interacting fermions on the lattice and expand in the hopping parameter to derive the nearest-neighbor interactions for a lattice gas model. In this model the renormalization of couplings for different lattice spacings is inherited from the effective field theory, systematic errors can be estimated a priori, and the breakdown of the lattice gas model description at low temperatures can be understood quantitatively. We apply the lattice gas method to neutron matter and compare with results from a recent quantum simulation.
Cite
@article{arxiv.nucl-th/0412014,
title = {Lattice gas models derived from effective field theory},
author = {Matthew Hamilton and Iyam Lynch and Dean Lee},
journal= {arXiv preprint arXiv:nucl-th/0412014},
year = {2008}
}
Comments
13 pages, 4 figures