Dissipationless Hall Current in Dense Quark Matter in a Magnetic Field

TL;DR

This paper demonstrates that dense quark matter in a magnetic field can exhibit dissipationless Hall currents due to axion electrodynamics, with potential implications for astrophysics and condensed matter systems.

Contribution

It reveals the realization of axion electrodynamics in dense quark matter's dual chiral density wave phase, showing a novel dissipationless Hall current.

Findings

Presence of an anomalous dissipationless Hall current

Connection to topological insulators and optical lattices

Implications for heavy-ion collisions and neutron stars

Abstract

We show the realization of axion electrodynamics within the Dual Chiral Density Wave phase of dense quark matter in the presence of a magnetic field. The system exhibits an anomalous dissipantionless Hall current perpendicular to the magnetic field and an anomalous electric charge density. Connection to topological insulators and 3D optical lattices, as well as possible implications for heavy-ion collisions and neutron stars are outlined.