Improved lattice operators for non-relativistic fermions
Statistical Mechanics
2012-07-09 v3 High Energy Physics - Lattice
Nuclear Theory
Abstract
In this work I apply a recently proposed improvement procedure, originally conceived to reduce finite lattice spacing effects in transfer matrices for dilute Fermi systems, to tuning operators for the calculation of observables. I construct, in particular, highly improved representations for the energy and the contact, as a first step in an improvement program for finite-temperature calculations. I illustrate the effects of improvement on those quantities with a ground-state lattice calculation at unitarity.
Keywords
Cite
@article{arxiv.1203.2565,
title = {Improved lattice operators for non-relativistic fermions},
author = {Joaquín E. Drut},
journal= {arXiv preprint arXiv:1203.2565},
year = {2012}
}
Comments
11 pages, 7 figures; replaced with published version