How Good is the Strong Coupling Expansion of the Two Dimensional Hubbard Model?

  • B. Friedman
  • X. Y. Chen
  • W. P. Su
Part of the NATO ASI Series book series (NSSB, volume 246)


Validity of the strong coupling expansion of the two dimensional Hubbard model is questioned. We present evidence of disagreement between the strong coupling expansion and the exact solution of the Hubbard model on small lattices.


Strong Coupling Ground State Energy Hubbard Model Ground State Wave Function Occupied State 
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Copyright information

© Plenum Press, New York 1991

Authors and Affiliations

  • B. Friedman
    • 1
  • X. Y. Chen
    • 1
  • W. P. Su
    • 1
  1. 1.Department of Physics and Texas Center for SuperconductivityUniversity of HoustonHoustonUSA

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