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Higher-derivative scalar-vector-tensor theories: black holes, Galileons, singularity cloaking and holography
Charmousis C., Goutéraux B., Kiritsis E.
Journal of High Energy Physics 09 (2012) 11 - http://hal.archives-ouvertes.fr/hal-00705788
Physique/Relativité Générale et Cosmologie Quantique
Physique/Physique des Hautes Energies - Théorie
Higher-derivative scalar-vector-tensor theories: black holes, Galileons, singularity cloaking and holography
C. Charmousis ()1, 2, B. Goutéraux3, 4, E. Kiritsis (http://hep.physics.uoc.gr/~kiritsis/)3, 4
1 :  LPT - Laboratoire de Physique Théorique d'Orsay [Orsay]
CNRS : UMR8627 – Université Paris XI - Paris Sud
Bâtiment 210 Université Paris XI 91405 Orsay Cedex
2 :  LMPT - Laboratoire de Mathématiques et Physique Théorique
Université François Rabelais - Tours – CNRS : UMR7350
Avenue Monge Parc de Grandmont - 37200 Tours
3 :  APC - UMR 7164 - AstroParticule et Cosmologie
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
4 :  Physics Department
University of Crete
University of Crete Department of Physics P.O Box 2208 GR-71003 Heraklion, Greece
We consider a general Kaluza-Klein reduction of a truncated Lovelock theory. We find necessary geometric conditions for the reduction to be consistent. The resulting lower-dimensional theory is a higher derivative scalar-tensor theory, depends on a single real parameter and yields second-order field equations. Due to the presence of higher-derivative terms, the theory has multiple applications in modifications of Einstein gravity (Galileon/Horndesky theory) and holography (Einstein-Maxwell-Dilaton theories). We find and analyze charged black hole solutions with planar or curved horizons, both in the 'Einstein' and 'Galileon' frame, with or without cosmological constant. Naked singularities are dressed by a geometric event horizon originating from the higher-derivative terms. The near-extremal geometries of the near-horizon region are either scale invariant or violate hyperscaling. For negative cosmological constant and planar horizons, thermodynamics and first-order hydrodynamics are derived: the shear viscosity to entropy density ratio does not depend on temperature, as expected from the higher-dimensional scale invariance.

Journal of High Energy Physics
Publisher Institute of Physics (IOP)
ISSN 1126-6708 (eISSN : 1029-8479)
Articles dans des revues avec comité de lecture

Higher derivatives – Lovelock theory – Galileons – Holography
41 pages, 2 tables

FP7-REGPOT-2008-1: CreteHEPCosmo-228644, PERG07-GA-2010- 268246
Acronyme "Thales" ESF/NSRF 2007-2013
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