Novel Topological Effects in Dense QCD in a Magnetic Field

Autor:	Ferrer, E. J., de la Incera, V.
Rok vydání:	2015
Předmět:	Nuclear Theory Condensed Matter - Mesoscale and Nanoscale Physics Condensed Matter - Materials Science Condensed Matter - Strongly Correlated Electrons High Energy Physics - Phenomenology
Druh dokumentu:	Working Paper
DOI:	10.1016/j.nuclphysb.2018.04.009
Popis:	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 $~\theta F^{\mu\nu}\tilde{F}_{\mu\nu}$, with a dynamic axion field $\theta$ 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. Comment: Section 3 completely revised, discussions added, and typos corrected
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/1512.03972 Zobrazit plný text záznamu View this record from Arxiv