The optimal inhomogeneity for superconductivity - finite size studies

ORAL

Abstract

We report the results of exact diagonalization studies of Hubbard models on a $4\times 4$ square lattice with periodic boundary conditions and various degrees and patterns of inhomogeneity. Inhomogeneities are represented by different patterns of inequivalent hopping integrals ($t$ and ${t}')$, such that for ${t}'=t$, the model is ``homogeneous'', while for ${t}'<

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Authors

  • Wei-Feng Tsai

    Department of Physics and Astronomy, UCLA

  • Hong Yao

    Department of Physics, Stanford University

  • Stephen Kivelson

    Department of Physics, Stanford University, Stanford University, Stanford Univ

  • Andreas Lauchli

    IRRMA, EPF Lausanne, Switzerland