Exact mesoscopic correlation functions of the pairing model
Mesoscale and Nanoscale Physics
2014-11-18 v1 Superconductivity
Nuclear Theory
Abstract
We study the static correlation functions of the Richardson pairing model (also known as the reduced or discrete-state BCS model) in the canonical ensemble. Making use of the Algebraic Bethe Ansatz formalism, we obtain exact expressions which are easily evaluated numerically for any value of the pairing strength up to large numbers of particles. We provide explicit results at half-filling and extensively discuss their finite-size scaling behavior.
Cite
@article{arxiv.0710.4865,
title = {Exact mesoscopic correlation functions of the pairing model},
author = {Alexandre Faribault and Pasquale Calabrese and Jean-Sebastien Caux},
journal= {arXiv preprint arXiv:0710.4865},
year = {2014}
}
Comments
15 Pages, 12 figures