title: Phenomenological characterization of semiholographic non-Fermi liquids.
abstract: We analyze some phenomenological implications of the most general semiholographic models for non-Fermi liquids that have emerged with inputs from the holographic correspondence. We find generalizations of Landau-Silin equations with few parameters governing thermodynamics, low-energy response, and collective excitations. We show that even when there is a Fermi surface with well-defined quasiparticle excitations, the collective excitations can behave very differently from Landau's theory.
authors: Centre de Physique Théorique, École Polytechnique, CNRS, 91128 Palaiseau, France and Institut de Physique Théorique, CEA Saclay, CNRS URA 2306, F-91191 Gif-sur-Yvette, France.
authors: Ayan
authors: A
authors: Mukhopadhyay
authors: Laboratoire de Physique Théorique, École Normale Supérieure, 24 rue Lhomond, 75231 Paris, France.
authors: Giuseppe
authors: G
authors: Policastro