We use an exact {\it holon} and {\it spinon} Landau-liquid functional which describes the holon - spinon interactions at all scattering orders, to study correlation functions of integrable multicomponent many-particle problems showing both linear and non-linear energy bands. Motivated by recent photoemission experiments, we consider specific cases when the dominant non-linear band terms are quadratic and apply our results to the evaluation of the half-filling 1D Hubbard model one-particle spectral functions beyond conformal-field theory.
@article{arxiv.cond-mat/9910038,
title = {One-Particle Spectral Properties of 1D Mott-Hubbard Insulators},
author = {J. M. P. Carmelo and J. M. E. Guerra and J. M. B. Lopes dos Santos and A. H. Castro Neto},
journal= {arXiv preprint arXiv:cond-mat/9910038},
year = {2021}
}
Comments
10 pages, accepted for publication in Physical Review Letters