d-wave superconductivity and Pomeranchuk instability in the two-dimensional Hubbard model
Strongly Correlated Electrons
2009-10-31 v1 Superconductivity
Abstract
We present a systematic stability analysis for the two-dimensional Hubbard model, which is based on a new renormalization group method for interacting Fermi systems. The flow of effective interactions and susceptibilities confirms the expected existence of a d-wave pairing instability driven by antiferromagnetic spin fluctuations. More unexpectedly, we find that strong forward scattering interactions develop which may lead to a Pomeranchuk instability breaking the tetragonal symmetry of the Fermi surface.
Keywords
Cite
@article{arxiv.cond-mat/0003349,
title = {d-wave superconductivity and Pomeranchuk instability in the two-dimensional Hubbard model},
author = {Christoph J. Halboth and Walter Metzner},
journal= {arXiv preprint arXiv:cond-mat/0003349},
year = {2009}
}
Comments
4 pages (RevTeX), 4 eps figures