154 articles – 1958 Notices  [english version]
 HAL : hal-00487266, version 1
 arXiv : 1005.4690
 DOI : 10.1007/JHEP11(2010)151
 Journal of High Energy Physics 1011 (2010) 151
 Effective Holographic Theories for low-temperature condensed matter systems
 C. Charmousis1, 2, B. Goutéraux2, B.S. Kim3, 4, E. Kiritsis4, 5, R. Meyer4
 (2010)
 The IR dynamics of effective holographic theories capturing the interplay between charge density and the leading relevant scalar operator at strong coupling are analyzed. Such theories are parameterized by two real exponents $(\gamma,\delta)$ that control the IR dynamics. By studying the thermodynamics, spectra and conductivities of several classes of charged dilatonic black hole solutions that include the charge density backreaction fully, the landscape of such theories in view of condensed matter applications is characterized. Several regions of the $(\gamma,\delta)$ plane can be excluded as the extremal solutions have unacceptable singularities. The classical solutions have generically zero entropy at zero temperature, except when $\gamma=\delta$ where the entropy at extremality is finite. The general scaling of DC resistivity with temperature at low temperature, and AC conductivity at low frequency and temperature across the whole $(\gamma,\delta)$ plane, is found. There is a codimension-one region where the DC resistivity is linear in the temperature. For massive carriers, it is shown that when the scalar operator is not the dilaton, the DC resistivity scales as the heat capacity (and entropy) for planar (3d) systems.
 1 : LMPT - Laboratoire de Mathématiques et Physique Théorique 2 : LPT - Laboratoire de Physique Théorique d'Orsay 3 : IESL-FORTH 4 : Department of Physics 5 : APC - UMR 7164 - AstroParticule et Cosmologie
 équipe(s) de recherche : APC - THEORIE
 Domaine : Physique/Matière Condensée/AutrePhysique/Physique des Hautes Energies - Théorie
 Lien vers le texte intégral : http://fr.arXiv.org/abs/1005.4690
 hal-00487266, version 1 http://hal.archives-ouvertes.fr/hal-00487266 oai:hal.archives-ouvertes.fr:hal-00487266 Contributeur : Patricia Dubois-Violette <> Soumis le : Vendredi 28 Mai 2010, 15:01:21 Dernière modification le : Lundi 2 Juillet 2012, 16:50:30