Pantheon SEMPARIS Le serveur des séminaires parisiens Paris

Statut Confirmé
Domaines hep-th
Date Lundi 22 Mai 2017
Heure 14:00
Institut LPTENS
Salle LPTENS Library
Nom de l'orateur Lippert
Prenom de l'orateur Matt
Addresse email de l'orateur
Institution de l'orateur
Titre Holographic Sliding Stripes
Résumé 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.
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