Quark condensate in two-flavor QCD

TL;DR

This paper presents a numerical study of the quark condensate in two-flavor QCD using overlap fermions, extracting the condensate by fitting Dirac eigenvalues to Random Matrix Theory predictions.

Contribution

It introduces a novel method of computing the quark condensate in two-flavor QCD through lattice simulations with overlap fermions and eigenvalue analysis.

Findings

Successful extraction of the quark condensate from eigenvalue distributions

Validation of Random Matrix Theory predictions in the context of QCD

Demonstration of the effectiveness of overlap fermions in non-perturbative calculations

Abstract

We compute the condensate in QCD with two flavors of dynamical fermions using numerical simulation. The simulations use overlap fermions, and the condensate is extracted by fitting the distribution of low lying eigenvalues of the Dirac operator in sectors of fixed topological charge to the predictions of Random Matrix Theory.