Dynamical color conductivity of a chiral quark-gluon plasma

TL;DR

This paper investigates the dynamical color conductivity in a chiral quark-gluon plasma, revealing anomalous contributions due to P and CP violation and highlighting its topological characteristics.

Contribution

It introduces the concept of chiral chromomagnetic conductivity and analyzes its properties using linear response theory at finite temperature and density.

Findings

Identification of anomalous conductivity as chiral chromomagnetic conductivity

Marginal variations in spectral representations compared to non-chiral plasma

Static limit of chiral chromomagnetic conductivity is medium-independent

Abstract

The dynamical chromoelectric color conductivity of a chiral plasma has been extracted from one loop gluon self energy by using linear response theory at finite temperature and density. It is shown that due to the P and CP violation the conductivity tensor has an anomalous contribution in addition to the longitudinal and transverse components. We identify this anomalous conductivity as chiral chromomagnetic conductivity. The spectral representations of real and imaginary parts of the longitudinal and transverse conductivities show marginal variations in chiral plasma as compared to the non-chiral plasma. The static limit of chiral chromomagnetic conductivity is found to be independent of medium properties reflecting its topological nature.