1999/08/19 by D. V. Khveshchenko, P. W. Anderson, Philip W. Anderson · 5 citations
Physics and Astronomy · #Advanced Condensed Matter Physics #Bosonization #Condensed matter physics #Density of states #Electron #Fermi Gamma-ray Space Telescope #Fermi energy #Fermi surface #Fermion #Gravitational singularity #Physics #Physics of Superconductivity and Magnetism #Quantum mechanics #Quantum oscillations #Rare-earth and actinide compounds #Scattering #Spectral line #Superconductivity #cond-mat
paper · pdf · doi:10.1103/physrevb.61.1658
published in Physical review. B, Condensed matter 61(3), 1658-1661 (American Physical Society) · Latex, 16 pages, Princeton preprint
arxiv created 1999/08/19 · openalex publication_date 2000/01/15 · arxiv updated 2016/08/31 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
We discuss the problem of x-ray absorption in a D-dimensional system of interacting fermions and, in particular, those features in the x-ray spectra that can be used to discriminate between conventional Fermi liquids and ``strange metals.'' We find that the x-ray Fermi edge singularities can still be present, although modified, even if the density of states vanishes at the Fermi energy, and that, in general, the relationship between the two appears to be quite subtle.