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Journal of High Energy Physics

, 2018:124 | Cite as

Weyl semimetal/insulator transition from holography

  • Yan Liu
  • Junkun Zhao
Open Access
Regular Article - Theoretical Physics
  • 47 Downloads

Abstract

We study a holographic model which exhibits a quantum phase transition from the strongly interacting Weyl semimetal phase to an insulating phase. In the holographic insulating phase there is a hard gap in the real part of frequency dependent diagonal conductivities. However, the anomalous Hall conductivity is nonzero at zero frequency, indicting that it is a Chern insulator. This holographic quantum phase transition is always of first order, signified by a discontinuous anomalous Hall conductivity at the phase transition, in contrast to the very continuous holographic Weyl semimetal/trivial semimetal phase transition. Our work reveals the novel phase structure of strongly interacting Weyl semimetal.

Keywords

Holography and condensed matter physics (AdS/CMT) Gauge-gravity correspondence 

Notes

Open Access

This article is distributed under the terms of the Creative Commons Attribution License (CC-BY 4.0), which permits any use, distribution and reproduction in any medium, provided the original author(s) and source are credited.

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Copyright information

© The Author(s) 2018

Authors and Affiliations

  1. 1.Department of Space Science, and International Research Institute of Multidisciplinary ScienceBeihang UniversityBeijingChina

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