PIRSA:10020034

Holographic non-Fermi Liquids

Vegh, D. (2010). Holographic non-Fermi Liquids. Perimeter Institute. https://pirsa.org/10020034

Vegh, David. Holographic non-Fermi Liquids. Perimeter Institute, Feb. 16, 2010, https://pirsa.org/10020034 

          @misc{ pirsa_PIRSA:10020034,
            doi = {10.48660/10020034},
            url = {https://pirsa.org/10020034},
            author = {Vegh, David},
            keywords = {Quantum Fields and Strings},
            language = {en},
            title = {Holographic non-Fermi Liquids},
            publisher = {Perimeter Institute},
            year = {2010},
            month = {feb},
            note = {PIRSA:10020034 see, \url{https://pirsa.org}}
          }

David Vegh Queen Mary - University of London (QMUL)

DOI 10.48660/10020034
Collection
Talk Type Scientific Series
Subject

Abstract

We describe a class of non-Fermi liquid systems, using the AdS/CFT correspondence. The Fermi surfaces are studied by computing the response functions of fermionic operators. The scaling behavior near the Fermi surfaces is determined by conformal dimensions in an emergent IR CFT. The low-energy excitations near the Fermi momenta are not Landau quasiparticles. When the operator is marginal in the IR CFT, the full spectral function is precisely of the `marginal Fermi liquid' form, introduced as a phenomenological model of the `strange metal' phase of high temperature superconductors.