Threshold Singularities in the One Dimensional Hubbard Model
Strongly Correlated Electrons
2013-05-29 v2
Abstract
We consider excitations with the quantum numbers of a hole in the one dimensional Hubbard model below half-filling. We calculate the finite-size corrections to the energy. The results are then used to determine threshold singularities in the single-particle Green's function for commensurate fillings. We present the analogous results for the Yang-Gaudin model (electron gas with delta-function interactions).
Cite
@article{arxiv.1002.1671,
title = {Threshold Singularities in the One Dimensional Hubbard Model},
author = {F. H. L. Essler},
journal= {arXiv preprint arXiv:1002.1671},
year = {2013}
}
Comments
26 pages, 12 figures version to appear in Phys Rev B