A New Iterative Perturbation Scheme for Lattice Models with Arbitrary Filling
arXiv:cond-mat/9509152 · doi:10.1103/PhysRevLett.77.131
Abstract
We derive a new perturbation scheme for treating the large d limit of lattice models at arbitrary filling. The results are compared with exact diagonalization data for the Hubbard model and found to be in good agreement.
Revtex, 5 pages, 3 postcript files for figures included