• Hubbard model: revisited—a macroscopic renormalization group study

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    • Keywords


      Hubbard model; macroscopic renormalization group; beta function

    • Abstract


      The spin-correlation length is used to set up a RG analysis of the Hubbard model (within RPA). We demonstrate that an identical critical behaviour is obtained by performing the macroscopic renormalization group analysis with the antisymmetric Landau interaction parameter. The beta functions for the half-filled and quarter-filled band cases have been evaluated.

    • Author Affiliations


      Avinash Singh1

      1. Loomis Laboratory of Physics and Materials Research Laboratory, University of Illinois at Urbana-Champaign, 1110 West Green, Urbana, IL - 61801, USA
    • Dates

  • Pramana – Journal of Physics | News

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      Posted on July 25, 2019

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