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Holographic quantum criticality and strange metal transport
Kim B. S., Kiritsis E., Panagopoulos C.
New Journal of Physics 14 (2012) 043045 - http://hal.in2p3.fr/in2p3-00714893
Physique/Matière Condensée/Autre
Physique/Physique des Hautes Energies - Théorie
Holographic quantum criticality and strange metal transport
Bom Soo Kim1, 2, 3, E. Kiritsis1, 2, 4, C. Panagopoulos1, 2, 3
1 :  CCTP - Crete Center for Theoretical Physics
http://hep.physics.uoc.gr/
University of Crete
Heraklion, Crete
Grèce
2 :  Physics Department
http://www.uoc.gr/Department/index.html
University of Crete
University of Crete Department of Physics P.O Box 2208 GR-71003 Heraklion, Greece
Grèce
3 :  IESL-FORTH - Institute of Electronic Structure and Laser
http://www.iesl.forth.gr/
Foundation for Research & Technolgy - Hellas
71110 Heraklion, Greece
Grèce
4 :  APC - UMR 7164 - AstroParticule et Cosmologie
http://www.apc.univ-paris7.fr/
CNRS : UMR7164 – IN2P3 – Observatoire de Paris – Université Paris VII - Paris Diderot – CEA : DSM/IRFU
APC - UMR 7164, Université Paris Diderot, 10 rue Alice Domon et Léonie Duquet, case postale 7020, F-75205 Paris Cedex 13
France
APC - THEORIE
A holographic model of a quantum critical theory at a finite but low temperature, and finite density is studied. The model exhibits non-relativistic z=2 Schrödinger symmetry and is realized by the Anti-de-Sitter-Schwarzschild black hole in light-cone coordinates. Our approach addresses the electrical conductivities in the presence or absence of an applied magnetic field and contains a control parameter that can be associated to quantum tuning via charge carrier doping or an external field in correlated electron systems. The Ohmic resistivity, the inverse Hall angle, the Hall coefficient and the magnetoresistance are shown to be in good agreement with experimental results of strange metals at very low temperature. The holographic model also predicts new scaling relations in the presence of a magnetic field.

Articles dans des revues avec comité de lecture
2012
New Journal of Physics (New. J. Phys.)
Publisher Institute of Physics: Open Access Journals
ISSN 1367-2630 
14
043045

39 pages, 7 figures
Lien vers le texte intégral : 
http://fr.arXiv.org/abs/1012.3464