Anomalous Electromagnetic Transport in Compact Stars

Authors

Efrain J. Ferrer, The University of Texas Rio Grande Valley
Vivian de la Incera, The University of Texas Rio Grande Valley

Document Type

Article

Publication Date

3-12-2018

Abstract

We study the anomalous electromagnetic transport properties of a quark-matter phase that can be realized in the presence of a magnetic field in the low-temperature/moderate-high-density region of the Quantum Chromodynamics (QCD) phase map. In this so-called Magnetic Dual Chiral Density Wave phase, an inhomogeneous condensate is dynamically induced producing a nontrivial topology, a consequence of the asymmetry of the lowest Landau level modes of the quasiparticles in this phase. The nontrivial topology manifests in the electromagnetic effective action via a chiral anomaly term 𝜃𝐹𝜇𝜈𝐹˜𝜇𝜈 , with an axion field 𝜃 given by the phase of the Dual Chiral Density Wave condensate. The coupling of the axion with the electromagnetic field leads to several macroscopic effects that include, among others, an anomalous, nondissipative Hall current, an anomalous electric charge, magnetoelectricity, and the formation of a hybridized propagating mode known as an axion polariton. The possible existence of this phase in the inner core of neutron stars opens a window to search for signals of its anomalous transport properties.

Comments

© 2018 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).

Recommended Citation

Ferrer, Efrain J., and Vivian De la Incera. "Anomalous electromagnetic transport in compact stars." Universe 4, no. 3 (2018): 54. https://doi.org/10.3390/universe4030054

Creative Commons License

This work is licensed under a Creative Commons Attribution 4.0 International License.

Publication Title

Universe

DOI

10.3390/universe4030054