title: Holographic non-Fermi-liquid fixed points.
abstract: Techniques arising from string theory can be used to study assemblies of strongly interacting fermions. Via this 'holographic duality', various strongly coupled many-body systems are solved using an auxiliary theory of gravity. Simple holographic realizations of finite density exhibit single-particle spectral functions with sharp Fermi surfaces, of a form distinct from those of the Landau theory. The self-energy is given by a correlation function in an infrared (IR) fixed-point theory that is represented by a two-dimensional anti de Sitter space (AdS(2)) region in the dual gravitational description. Here, we describe in detail the gravity calculation of this IR correlation function.
authors.affiliation: KITP, Santa Barbara, CA 93106, USA.
authors.forename: Tom
authors.initials: T
authors.lastname: Faulkner
authors.forename: Nabil
authors.initials: N
authors.lastname: Iqbal
authors.forename: Hong
authors.initials: H
authors.lastname: Liu
authors.forename: John
authors.initials: J
authors.lastname: McGreevy
authors.forename: David
authors.initials: D
authors.lastname: Vegh