An organizing principle for two-dimensional strongly correlated superconductivity
Abstract
Superconductivity in the cuprates exhibits many unusual features. We study the two-dimensional Hubbard model with plaquette dynamical mean-field theory to address these unusual features and relate them to other normal-state phenomena, such as the pseudogap. Previous studies with this method found that upon doping the Mott insulator at low temperature a pseudogap phase appears. The low-temperature transition between that phase and the correlated metal at higher doping is first-order. A series of crossovers emerge along the Widom line extension of that first-order transition in the supercritical region. Here we show that the highly asymmetric dome of the dynamical mean-field superconducting transition temperature , the maximum of the condensation energy as a function of doping, the correlation between maximum and normal-state scattering rate, the change from potential-energy driven to kinetic-energy driven pairing mechanisms can all be understood as remnants of the normal state first-order transition and its associated crossovers that also act as an organizing principle for the superconducting state.
Cite
@article{arxiv.1602.02278,
title = {An organizing principle for two-dimensional strongly correlated superconductivity},
author = {L. Fratino and P. Sémon and G. Sordi and A. -M. S. Tremblay},
journal= {arXiv preprint arXiv:1602.02278},
year = {2016}
}
Comments
6 pages, 2 figures and supplementary information