Lattice calculation for unitary fermions in a finite box
High Energy Physics - Lattice
2011-06-30 v1 Nuclear Theory
Abstract
A fundamental constant in systems of unitary fermions is the so-called Bertsch parameter, the ratio of the ground state energy for spin paired unitary fermions to that for free fermions at the same density. I discuss how we computed this parameter as well as the pairing gap using a recently developed lattice construction for unitary fermions, by measuring correlation functions for up to 38 fermions in a finite box. Our calculation illustrates interesting issues facing the study of many-body states on the lattice, which may eventually be confronted in QCD calculations as well.
Keywords
Cite
@article{arxiv.1011.3026,
title = {Lattice calculation for unitary fermions in a finite box},
author = {Jong-Wan Lee and Michael G. Endres and David B. Kaplan and Amy N. Nicholson},
journal= {arXiv preprint arXiv:1011.3026},
year = {2011}
}
Comments
7 pages, 6 figures, The XXVIII International Symposium on Lattice Field Theory, Lattice2010, June 14-19, 2010, Villasimius, Italy