, Volume 29, Issue 5, pp 509–516 | Cite as

Hubbard model: revisited—a macroscopic renormalization group study

  • Avinash Singh
Condensed Matter Physics


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.


Hubbard model macroscopic renormalization group beta function 




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Copyright information

© Indian Academy of Sciences 1987

Authors and Affiliations

  • Avinash Singh
    • 1
  1. 1.Loomis Laboratory of Physics and Materials Research LaboratoryUniversity of Illinois at Urbana-ChampaignUrbanaUSA

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