Fermions at Finite Density in (2+1)d with Sign-Optimized Manifolds
High Energy Physics - Lattice
2018-11-14 v2 Statistical Mechanics
Strongly Correlated Electrons
Abstract
We present Monte Carlo calculations of the thermodynamics of the (2+1) dimensional Thirring model at finite density. We bypass the sign problem by deforming the domain of integration of the path integral into complex space in such a way as to maximize the average sign within a parameterized family of manifolds. We present results for lattice sizes up to and we find that at high densities and/or temperatures the chiral condensate is abruptly reduced.
Cite
@article{arxiv.1808.09799,
title = {Fermions at Finite Density in (2+1)d with Sign-Optimized Manifolds},
author = {Andrei Alexandru and Paulo F. Bedaque and Henry Lamm and Scott Lawrence and Neill C. Warrington},
journal= {arXiv preprint arXiv:1808.09799},
year = {2018}
}
Comments
5 pages, 4 figures