Novel topological effects in dense QCD in a magnetic field

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

6-2018

Abstract

We study the electromagnetic properties of dense QCD in the so-called Magnetic Dual Chiral Density Wave phase. This inhomogeneous phase exhibits a nontrivial topology that comes from the fermion sector due to the asymmetry of the lowest Landau level modes. The nontrivial topology manifests in the electromagnetic effective action via a chiral anomaly term θ F μ ν ˜ F μ ν , with a dynamic 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. Connection to topological insulators and Weyls semimetals, as well as possible implications for heavy-ion collisions and neutron stars are all highlighted.

Comments

http://creativecommons.org/licenses/by/4.0/

Recommended Citation

Ferrer, E. J., and V. de la Incera. "Novel topological effects in dense QCD in a magnetic field." Nuclear Physics B 931 (2018): 192-215. https://doi.org/10.1016/j.nuclphysb.2018.04.009

Creative Commons License

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

Publication Title

Nuclear Physics B

DOI

10.1016/j.nuclphysb.2018.04.009