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Holographic metals and insulators with helical symmetry.

Donos, Aristomenis and Goutéraux, Blaise and Kiritsis, Elias (2014) 'Holographic metals and insulators with helical symmetry.', Journal of high energy physics., 2014 (9). 038.

Abstract

Homogeneous, zero temperature scaling solutions with Bianchi VII spatial geometry are constructed in Einstein-Maxwell-Dilaton theory. They correspond to quantum critical saddle points with helical symmetry at finite density. Assuming AdS 5 UV asymptotics, the small frequency/(temperature) dependence of the AC/(DC) electric conductivity along the director of the helix are computed. A large class of insulating and conducting anisotropic phases is found, as well as isotropic, metallic phases. Conduction can be dominated by dissipation due to weak breaking of translation symmetry or by a quantum critical current.

Item Type:Article
Keywords:Holography and condensed matter physics (AdS/CMT), AdS-CFT Correspondence.
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Status:Peer-reviewed
Publisher Web site:http://dx.doi.org/10.1007/JHEP09(2014)038
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:13 August 2014
Date deposited:27 April 2015
Date of first online publication:September 2014
Date first made open access:No date available

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