Artículos de revistas
Conductivities from attractors
Fecha
2017-03-01Registro en:
Journal of High Energy Physics, v. 2017, n. 3, 2017.
1029-8479
1126-6708
10.1007/JHEP03(2017)147
2-s2.0-85016953037
2-s2.0-85016953037.pdf
Autor
Max-Planck-Institut für Physik (Werner-Heisenberg-Institut)
Julius-Maximilians-Universität Würzburg
University of Iceland
Universidade Estadual Paulista (Unesp)
Institución
Resumen
In the context of applications of the AdS/CFT correspondence to condensed matter physics, we compute conductivities for field theory duals of dyonic planar black holes in 3+1-dimensional Einstein-Maxwell-dilaton theories at zero temperature. We combine the near-horizon data obtained via Sen’s entropy function formalism with known expressions for conductivities. In this way we express the conductivities in terms of the extremal black hole charges. We apply our approach to three different examples for dilaton theories for which the background geometry is not known explicitly. For a constant scalar potential, the thermoelectric conductivity explicitly scales as αxy ∼ N3/2, as expected. For the same model, our approach yields a finite result for the heat conductivity κ/T ∝ N3/2 even for T → 0.