Journal of Low Temperature Physics

, Volume 99, Issue 3–4, pp 305–310 | Cite as

Spectral functions for the 2D Hubbard model

  • M. U. Luchini
  • D. M. Edwards
Electronic Properties

Abstract

Spectral functions and quasiparticle bands are calculated with the modified alloy analogy approximation and are found to be in excellent agreement with the Monte Carlo data of Bulut et al. The Fermi surfaces also agree and have anomalously large volumes for large U near half-filling. In the modified alloy analogy this is a symptom of the breakdown of Fermi liquid theory.

PACS numbers

74.20.−z 74.65.+n 71.28.+d 

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Copyright information

© Plenum Publishing Corporation 1995

Authors and Affiliations

  • M. U. Luchini
    • 1
  • D. M. Edwards
    • 1
  1. 1.Department of MathematicsImperial CollegeLondonUK

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