Pairfield Fluctuations of the 2D Hubbard Model
Superconductivity
2018-10-25 v1 Strongly Correlated Electrons
Abstract
At temperatures above the superconducting transition temperature the pairfield susceptibility provides information on the nature of the pairfield fluctuations. Here we study the d-wave pairfield susceptibility of a 2D Hubbard model for dopings which have a pseudogap (PG) and for dopings which do not. One knows that in both cases there will be a region of Kosterlitz-Thouless fluctuations as the transition at is approached. Above this region we find evidence for Emery-Kivelson phase fluctuations for dopings with a PG and Gaussian amplitude fluctuations for dopings without a PG.
Keywords
Cite
@article{arxiv.1810.10043,
title = {Pairfield Fluctuations of the 2D Hubbard Model},
author = {Thomas A. Maier and Douglas J. Scalapino},
journal= {arXiv preprint arXiv:1810.10043},
year = {2018}
}