Analytic Calculation of Momentum Distributions and Ground State Energies of Correlated Fermions with the Gutzwiller Wave Function

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Copyright (c) 1987 The Japan Society of Applied Physics
, , Citation Walter Metzner and Dieter Vollhardt 1987 Jpn. J. Appl. Phys. 26 479 DOI 10.7567/JJAPS.26S3.479

1347-4065/26/S3-1/479

Abstract

A new analytic approach is discussed which allows for an exact evaluation of ground state properties of correlated fermions in terms of the Gutzwiller variational wave function in d = 1. The results are applied to the Hubbard model. The approach may also be used to investigate higher dimensional systems.

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10.7567/JJAPS.26S3.479