Staggered Fermion Thermodynamics using Anisotropic Lattices

TL;DR

This paper explores QCD thermodynamics using anisotropic lattices with staggered fermions, varying temperature by changing time slices, and reports on the equation of state and scale setting with dynamical fermions.

Contribution

It introduces a method to study QCD thermodynamics on anisotropic lattices with fixed physics scales by varying the temporal lattice extent.

Findings

Determined Karsch coefficients for anisotropic lattices.

Calculated the QCD equation of state at finite temperatures.

Validated the approach with zero-temperature scale setting simulations.

Abstract

Numerical simulations of full QCD on anisotropic lattices provide a convenient way to study QCD thermodynamics with fixed physics scales and reduced lattice spacing errors. We report results from calculations with 2-flavors of dynamical fermions where all bare parameters and hence the physics scales are kept constant while the temperature is changed in small steps by varying only the number of the time slices. The results from a series of zero-temperature scale setting simulations are used to determine the Karsch coefficients and the equation of state at finite temperatures.