%0 Journal Article
%T Infinite Volume Extrapolations of Finite Cluster Calculations, ---How Correct are These?
%A S. Mazumdar
%A F. Guo
%A D. Guo
%A K. -C. Ung
%A J. Tinka Gammel
%J Physics
%D 1993
%I arXiv
%X Extrapolations of numerical data obtained from finite cluster calculations to the infinite volume limit can often give incorrect results. We discuss four separate cases: (a) the intensity of the lowest two-photon absorption in the infinite polyene, (b) bond alternation in the infinite polyene, (c) Cooper type pairing in the simple Hubbard model, and (d) pairing within the extended Hubbard model.
%U http://arxiv.org/abs/cond-mat/9303003v1