The equation of state with nonzero chemical potential for 2+1 flavors

TL;DR

This paper computes the QCD equation of state at nonzero chemical potential using a sixth-order Taylor expansion on 2+1 flavor lattices, providing insights into the behavior of strongly interacting matter under such conditions.

Contribution

It introduces a sixth-order Taylor expansion approach to calculate the QCD equation of state at finite chemical potential on 2+1 flavor lattices.

Findings

Results extend the understanding of QCD thermodynamics at finite density.

Provides data for the equation of state relevant to heavy-ion collisions.

Demonstrates the feasibility of high-order Taylor expansions in lattice QCD.

Abstract

We present results for the QCD equation of state with nonzero chemical potential using the Taylor expansion method with terms up to sixth order in the expansion. Our calculations are performed on asqtad 2+1 quark flavor lattices at $N_t=4$.