Evidence for d-wave superconductivity in the repulsive Hubbard-model

Abstract

We perform numerical simulations of the Hubbard model using the projector Quantum Monte Carlo method. A novel approach for finite size scaling is discussed. We obtain evidence in favor of d-wave superconductivity in the repulsive Hubbard model. For U=4, $T_c$ is roughly estimated as $T_c\approx 30K$.

13 pages, 3 figures, 2 tables, submitted to Phys. Rev. Letters

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