Finite density lattice QCD without extrapolations

EPJ Web of Conferences 2026 Open access

Read full text
Authors: Alexander Adam, Szabolcs Borsányi, Z. Fodor, Jana N. Guenther, Paolo Parotto, Attila Pásztor, Ludovica Pirelli, Chik Him Wong
DOI: 10.1051/epjconf/202636412004
Cited by: 0
References: 8

Abstract

Finite density lattice QCD usually relies on extrapolations in baryon chemical potential ( μ B ), be it Taylor expansion, T' expansion ([1]) or analytical continuation. However, their range of validity is difficult to control. In the canonical formulation, the baryon density is the parameter of the system, not μ B . Here we demonstrate that we can access finite density QCD in the canonical formulation with physical quark masses. We present first results with both the strangeness ( n S ) and baryon ( n B ) densities as parameters. Specifically, we compute the QCD pressure and chemical potentials as functions of nB and nS . Our computations rely on high-statistics simulations with 2+1 4HEX-staggered fermions.

Fields of Study & Subjects

Quantum Chromodynamics and Particle Interactions High-Energy Particle Collisions Research Physics of Superconductivity and Magnetism

Publication details

Journal / source
EPJ Web of Conferences
Publisher
EDP Sciences
Volume
364
Pages
12004–12004
Publication date
1 January 2026
Language
EN