Work

Localization properties of Dirac modes at the Roberge-Weiss phase transition

Year: 2022

Type: article

Abstract: We study the localization properties of the low-lying Dirac eigenmodes in QCD at imaginary chemical potential ${\stackrel{^}{\ensuremath{\mu}}}_{I}=\ensuremath{\pi}$ at temperatures above the Roberge-Weiss (RW) transition temperature ${T}_{\mathrm{RW}}$. We find that modes are localized up to a temperature-dependent ``mobility edge'' and delocalized above it and that the mobility edge extrapolates to zero at a temperature compatible with ${T}_{\mathrm{RW}}$. This supports the existence of a strong connection between localization of the low Dirac modes and deconfinement, studied here for the first time in a model with a genuine deconfinement transition in the continuum limit in the presence of dynamical fermions.

Source: Physical review. D/Physical review. D.

DOI: 10.1103/physrevd.105.014506

Authors: Marco Cardinali, Massimo D’Elia, Francesco Garosi, Matteo Giordano

Institutions: University of Pisa, Istituto Nazionale di Fisica Nucleare, Sezione di Pisa, Scuola Internazionale Superiore di Studi Avanzati, Eötvös Loránd University

Language: English

Topic: Quantum Chromodynamics and Particle Interactions

Subfield: Nuclear and High Energy Physics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: hybrid

Funder: Nemzeti Kutatási Fejlesztési és Innovációs Hivatal

Award: G2566642906