2011/12/31 by Oliver DeWolfe, Steven S. Gubser, Christopher Rosen +1 · 4 citations
Physics and Astronomy · #Black Holes and Theoretical Physics #Condensed matter physics #Cosmology and Gravitation Theories #Fermi Gamma-ray Space Telescope #Fermi surface #Gauged supergravity #Mathematical physics #Noncommutative and Quantum Gravity Theories #Physics #Quantum electrodynamics #Superconductivity #Supergravity #Supersymmetry #Theoretical physics #hep-th
paper · pdf · doi:10.1103/physrevlett.108.251601
6 pages, REVTeX. v2: Introduction expanded, version to appear in Physical Review Letters
arxiv created 2012/05/16 · openalex publication_date 2012/06/19 · arxiv updated 2013/05/29 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
We obtain fermion fluctuation equations around extremal charged black hole geometries in maximal gauged supergravity in four and five dimensions, and we demonstrate that their solutions display Fermi surface singularities for the dual conformal field theories at finite chemical potential. The four-dimensional case is a massless charged fermion, while in five dimensions we find a massive charged fermion with a Pauli coupling. In both cases, the corresponding scaling exponent is less than one half, leading to non-Fermi liquid behavior with no stable quasiparticles, although some excitations have widths more than 10 times smaller than their excitation energy. In the five-dimensional case, both the Fermi momentum and the scaling exponent appear to have simple values, and a Luttinger calculation suggests that the gauginos may carry most of the charge of the black hole.