On the Scaling Limit of the 1D Hubbard Model at Half Filling

Details On the Scaling Limit of the 1D Hubbard Model at Half Filling On the Scaling Limit of the 1D Hubbard Model at Half Filling

1994-10-13

arxiv.org/abs/cond-mat/9410043v1

Physics

Condensed Matter

14 pages in harvmac, Tel-Aviv preprint TAUP 2203-94

Scientific paper

10.1016/0550-3213(95)00105-2

The dispersion relations and S-matrix of the one-dimensional Hubbard model at half filling are considered in a certain scaling limit. (In the process we derive a useful small-coupling expansion of the exact lattice dispersion relations.) The resulting scattering theory is consistently identified as that of the SU(2) chiral-invariant Thirring (or Gross-Neveu) field theory, containing both massive and massless sectors.

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