English

Continuous Time Simulations of Strong Coupling LQCD at Finite Baryon Density

High Energy Physics - Lattice 2019-12-23 v1

Abstract

We study lattice QCD in the limit of infinite gauge coupling on a discrete spatial yet continuous Euclidean time lattice at finite baryon chemical potential μB\mu_B. The continuous time framework is based on sending NτN_\tau\rightarrow \infty and the bare anisotropy to infinity while fixing the temperature in a non-perturbative setup. This leads to a sign problem free algorithm that allows us to study the whole μB\mu_B-TT plane. We construct Taylor coefficients required for a Taylor expansion in the pressure at zero chemical potential and in the chiral limit. On that account, cumulants in the baryon number density are measured in various fashions to improve on accuracy. These calculations are based on our worm type Monte Carlo algorithm featuring a polymer resummation scheme and a histogram method.

Keywords

Cite

@article{arxiv.1912.09888,
  title  = {Continuous Time Simulations of Strong Coupling LQCD at Finite Baryon Density},
  author = {Marc Klegrewe and Wolfgang Unger},
  journal= {arXiv preprint arXiv:1912.09888},
  year   = {2019}
}

Comments

7 pages, 2 figures; Proceedings of the 37th International Symposium on Lattice Field Theory - Lattice 2019, Wuhan (China)