Thermoelectric transport in SYK and holographic models of disordered non-Fermi liquids

ORAL

Abstract

We describe charged Sachdev-Ye-Kitaev (SYK) models, which contain complex fermions with q/2-body, Gaussian-random, all-to-all interactions. A low-energy effective action is derived: it is described by a re-parameterization field, representing energy fluctuations, and a phase field, representing charge fluctuations. We compute thermoelectric transport properties, and show that they match perfectly with holographic results obtained from black holes with AdS2 horizons and momentum dissipation.

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Authors

  • Wenbo Fu

    • Department of Physics, Harvard University

  • Richard Davison

    • Harvard University
    • Department of Physics, Harvard University

  • Yingfei Gu

    • Department of Physics, Stanford University

  • Jensen Kristan

    • Department of Physics and Astronomy, San Francisco State University

  • Subir Sachdev

    • Harvard Univ
    • Department of Physics, Harvard University
    • Harvard University