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Novel metals and insulators from holography.

Donos, Aristomenis and Gauntlett, Jerome P. (2014) 'Novel metals and insulators from holography.', Journal of high energy physics., 2014 (6). 007.

Abstract

Using simple holographic models in D = 4 spacetime dimensions we construct black hole solutions dual to d = 3 CFTs at finite charge density with a Q-lattice deformation. At zero temperature we find new ground state solutions, associated with broken translation invariance in either one or both spatial directions, which exhibit insulating or metallic behaviour depending on the parameters of the holographic theory. For low temperatures and small frequencies, the real part of the optical conductivity exhibits a power-law behaviour. We also obtain an expression for the the DC conductivity at finite temperature in terms of horizon data of the black hole solutions.

Item Type:Article
Keywords:Holography and condensed matter physics (AdS/CMT), Black Holes in String Theory, AdS-CFT Correspondence.
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Status:Peer-reviewed
Publisher Web site:http://dx.doi.org/10.1007/JHEP06(2014)007
Publisher statement:Open Access, © The Authors. Article funded by SCOAP3. 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.
Date accepted:30 April 2014
Date deposited:27 April 2015
Date of first online publication:June 2014
Date first made open access:No date available

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