title: Systematic study of d-wave superconductivity in the 2D repulsive Hubbard model.
abstract: The cluster size dependence of superconductivity in the conventional two-dimensional Hubbard model, commonly believed to describe high-temperature superconductors, is systematically studied using the dynamical cluster approximation and quantum Monte Carlo simulations as a cluster solver. Because of the nonlocality of the d-wave superconducting order parameter, the results on small clusters show large size and geometry effects. In large enough clusters, the results are independent of the cluster size and display a finite temperature instability to d-wave superconductivity.
authors.affiliation: Computer Science and Mathematics Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA.
authors.forename: T A
authors.initials: TA
authors.lastname: Maier
authors.forename: M
authors.initials: M
authors.lastname: Jarrell
authors.forename: T C
authors.initials: TC
authors.lastname: Schulthess
authors.forename: P R C
authors.initials: PR
authors.lastname: Kent
authors.forename: J B
authors.initials: JB
authors.lastname: White