2014/11/19 by Charles Cosnier-Horeau, Steven S. Gubser
Physics and Astronomy · #Black Holes and Theoretical Physics #Cosmology and Gravitation Theories #Electron #Fermi liquid theory #Fermion #Gauge theory #Mathematical physics #Particle physics theoretical and experimental studies #Physics #Quantum electrodynamics #Quantum mechanics #Scalar field #Supergravity #Supersymmetry #hep-th
paper · pdf · doi:10.1103/physrevd.91.066002
published as Phys. Rev. D 91, 066002 (2015) · 20 pages, 3 figures
arxiv created 2014/11/19 · openalex publication_date 2015/03/06 · arxiv updated 2015/03/11 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
We calculate the two-point Green's functions of operators dual to fermions of maximal gauged supergravity in four and five dimensions, in finite-temperature backgrounds with finite charge density. The numerical method used in these calculations is based on differential equations for bilinears of the supergravity fermions rather than the equations of motion for the fermions themselves. The backgrounds we study have vanishing entropy density in appropriate extremal limits. Holographic Fermi surfaces are observed when the scalar field participating in the dual field theory operator has an expectation value, which makes sense from the point of view that the quasiparticles near the Fermi surfaces observed carry nonsinglet gauge quantum numbers in the dual field theory.