Original Paper

Journal of Superconductivity and Novel Magnetism

, Volume 25, Issue 5, pp 1307-1311

First online:

Superconductivity in Striped and Multi-Fermi-Surface Hubbard Models: From the Cuprates to the Pnictides

  • Thomas A. MaierAffiliated withComputer Science and Mathematics Division and Center for Nanophase Materials Sciences, Oak Ridge National Laboratory Email author 

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Single- and multiband Hubbard models have been found to describe many of the complex phenomena that are observed in the cuprate and iron-based high-temperature superconductors. Simulations of these models therefore provide an ideal framework to study and understand the superconducting properties of these systems and the mechanisms responsible for them. Here, we review recent dynamic cluster quantum Monte Carlo simulations of these models, which provide an unbiased view of the leading correlations in the system. In particular, we discuss what these simulations tell us about superconductivity in the homogeneous 2D single-orbital Hubbard model, and how charge stripes affect this behavior. We then describe recent simulations of a bilayer Hubbard model, which provides a simple model to study the type and nature of pairing in systems with multiple Fermi surfaces such as the iron-based superconductors.


Superconductivity Cuprates Pnictides