English

An organizing principle for two-dimensional strongly correlated superconductivity

Strongly Correlated Electrons 2016-03-15 v1 Statistical Mechanics 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 TcdT_c^d, the maximum of the condensation energy as a function of doping, the correlation between maximum TcdT_c^d 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.

Keywords

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

R2 v1 2026-06-22T12:44:46.923Z