Two-flavor QCD Thermodynamics using Anisotropic Lattices

TL;DR

This paper presents a method for studying QCD thermodynamics using anisotropic lattices with two flavors of dynamical fermions, enabling precise temperature control and accurate equation of state calculations.

Contribution

It introduces a simulation approach that maintains fixed physics scales and reduces lattice errors, with a focus on determining the equation of state in full QCD.

Findings

Successful calculation of the QCD equation of state at finite temperatures.

Implementation of fixed-scale simulations with anisotropic lattices.

Determination of Karsch coefficients for scale setting.

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 two flavors of dynamical staggered fermions, where all bare parameters and the renormalized anisotropy are kept constant and the temperature is changed in small steps by varying only the number of time slices. Including results from zero-temperature scale setting simulations, which determine the Karsch coefficients, allows for the calculation of the equation of state at finite temperatures.