158 articles – 1990 Notices  [english version]
 HAL : in2p3-00714894, version 1
 arXiv : 1011.5900
 DOI : 10.1007/JHEP04(2011)113
 Journal of High Energy Physics 04 (2011) 113
 Large-N limits of 2d CFTs, Quivers and AdS_3 duals
 E. Kiritsis1, 2, V. Niarchos2
 (2011)
 We explore the large-N limits of 2d CFTs, focusing mostly on WZW models and their cosets. The $SU(N)_k$ theory is parametrized in this limit by a 't Hooft-like coupling. We show a duality between strong coupling, where the theory is described by almost free fermions, and weak coupling where the theory is described by bosonic fields by an analysis of spectra and correlators. The AdS$_3$ dual is described, and several quantitative checks are performed. Besides the more standard states that should correspond to bulk black holes we find ground states with large degeneracy that can dominate the standard Cardy entropy at weak coupling and are expected to correspond to regular horizonless semiclassical bulk solutions.
 équipe(s) de recherche : APC - THEORIE
 Thème(s) : Physique/Physique des Hautes Energies - Théorie
 Lien vers le texte intégral : http://fr.arXiv.org/abs/1011.5900
 in2p3-00714894, version 1 http://hal.in2p3.fr/in2p3-00714894 oai:hal.in2p3.fr:in2p3-00714894 Contributeur : E. Kiritsis <> Soumis le : Jeudi 5 Juillet 2012, 21:29:31 Dernière modification le : Vendredi 6 Juillet 2012, 16:05:10