English

Superconductivity in the quasi-two-dimensional Hubbard model

Superconductivity 2009-10-23 v4

Abstract

On the basis of spin and pairing fluctuation-exchange approximation, we study the superconductivity in quasi-two-dimensional Hubbard model. The integral equations for the Green's function are self-consistently solved by numerical calculation. Solutions for the order parameter, London penetration depth, density of states, and transition temperature are obtained. Some of the results are compared with the experiments for the cuprate high-temperature superconductors. Numerical techniques are presented in details. With these techniques, the amount of numerical computation can be greatly reduced.

Keywords

Cite

@article{arxiv.cond-mat/0402386,
  title  = {Superconductivity in the quasi-two-dimensional Hubbard model},
  author = {Xin-Zhong Yan},
  journal= {arXiv preprint arXiv:cond-mat/0402386},
  year   = {2009}
}

Comments

17 pages, 13 figures

R2 v1 2026-07-22T10:59:53.989Z