Strong correlation effects in the doped Hubbard model in infinite dimensions

Details Strong correlation effects in the doped Hubbard model in infinite dimensions Strong correlation effects in the doped Hubbard model in infinite dimensions

1995-08-23

arxiv.org/abs/cond-mat/9508096v1

Physics

Condensed Matter

9 pages, revtex, 3 figures upon request

Scientific paper

The density of states and the optical conductivity of the doped Hubbard model on a Bethe lattice with infinite connectivities have been studied using an analytic variant of the Lanczos continued fraction method. The spectral weight of the gap states and the position of the chemical potential upon hole or electron doping have been studied. We argue that the strong correlation effects such as gap states and midinfrared band shown in two dimensions also appear in infinite dimensions.

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