Magnetic and superconducting correlations in the two-dimensional Hubbard model
Strongly Correlated Electrons
2009-11-11 v1
Abstract
The interplay and competition of magnetic and superconducting correlations in the weakly interacting two-dimensional Hubbard Model is investigated by means of the functional renormalization group. At zero temperature the flow of interactions in one-loop approximation evolves into a strong coupling regime at low energy scales, signalling the possible onset of spontaneous symmetry breaking. This is further analyzed by a mean-field treatment of the strong renormalized interactions which takes into account magnetic and superconducting order simultaneously. The effect of strong correlations on single-particle properties in the normal phase is studied by calculating the flow of the self-energy.
Cite
@article{arxiv.cond-mat/0509412,
title = {Magnetic and superconducting correlations in the two-dimensional Hubbard model},
author = {W. Metzner and J. Reiss and D. Rohe},
journal= {arXiv preprint arXiv:cond-mat/0509412},
year = {2009}
}
Comments
16 pages, 10 figures