Holographic sliding stripes

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Jokela , N , Järvinen , M & Lippert , M 2017 , ' Holographic sliding stripes ' , Physical Review D , vol. 95 , no. 8 , 086006 . https://doi.org/10.1103/PhysRevD.95.086006

Title: Holographic sliding stripes
Author: Jokela, Niko; Järvinen, Matti; Lippert, Matthew
Contributor organization: Department of Physics
Helsinki Institute of Physics
Date: 2017-04-10
Language: eng
Number of pages: 20
Belongs to series: Physical Review D
ISSN: 2470-0010
DOI: https://doi.org/10.1103/PhysRevD.95.086006
URI: http://hdl.handle.net/10138/307641
Abstract: Holographic models provide unique laboratories to investigate nonlinear physics of transport in inhomogeneous systems. We provide a detailed account of both dc and ac conductivities in a defect conformal field theory with spontaneous stripe order. The spatial symmetry is broken at large chemical potential, and the resulting ground state is a combination of a spin and charge density wave. An infinitesimal applied electric field across the stripes will cause the stripes to slide over the underlying density of smeared impurities, a phenomenon which can be associated with the Goldstone mode for the spontaneously broken translation symmetry. We show that the presence of a spatially modulated background magnetization current thwarts the expression of some dc conductivities in terms of horizon data.
114 Physical sciences
Peer reviewed: Yes
Rights: other
Usage restriction: openAccess
Self-archived version: acceptedVersion

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