Anomalous transport phenomena on the lattice

TL;DR

This paper investigates anomalous transport effects in QCD using lattice simulations with improved staggered quarks, focusing on conductivities under magnetic fields across different temperatures and quark masses.

Contribution

It provides the first lattice QCD calculations of anomalous conductivities in the presence of magnetic fields, analyzing their dependence on temperature and quark mass.

Findings

Conductivities are computed for free and interacting cases.

Dependence of conductivities on temperature and quark mass is analyzed.

Results enhance understanding of anomalous transport in QCD.

Abstract

The interrelation between quantum anomalies and electromagnetic fields leads to a series of non-dissipative transport effects in QCD. In this work we study anomalous transport phenomena with lattice QCD simulations using improved staggered quarks in the presence of a background magnetic field. In particular, we calculate the conductivities both in the free case and in the interacting case, analysing the dependence of these coefficients with several parameters, such as the temperature and the quark mass.