Electrical Conductivity of Dense Quark Matter with Fluctuations and Magnetic Field Included

TL;DR

This paper studies the electrical conductivity of dense quark matter near phase transition, revealing magnetic field independence at high density and fluctuation dominance in the precritical region.

Contribution

It provides new insights into how fluctuations and magnetic fields influence electrical conductivity in dense quark matter near phase transitions.

Findings

Drude EC is unaffected by magnetic fields up to eB ~ 10^{19} G at high density.

Fluctuation EC dominates over Drude EC in the precritical region.

Magnetic field effects are negligible in certain density regimes.

Abstract

We investigate the electrical conductivity(EC) of dense quark matter in the vicinity of the phase transition line. We show that: (i) At high density the Drude EC does not depend on the magnetic field up to $eB \sim 10^{19} \ G$. (ii) In the precritical region the fluctuation EC (paraconductivity) dominates over the Drude one.