Comparing pair-field susceptibilities in the single-band and three-band Hubbard models

ORAL

Abstract

Determinant quantum Monte Carlo (DQMC) has been widely applied to both the single-band and three-band Hubbard models. The method can capture aspects of strange metal transport, spin and charge stripe formation, and d-wave pairing in both models. In this work, we perform DQMC simulation of the three-band Hubbard model, includimg an explicit treatment of the oxygen p-orbitals, and focus on the pair-field susceptibility. To enable comparison with the single-band Hubbard model, we construct d-wave order parameters with B1g symmetry and contributions from oxygen orbitals. We observe a change in the pair-field susceptibility with doping that is consistent with findings in the single-band Hubbard model only when explicitly considering contributions from oxygen orbitals.

* The work at Stanford and SLAC was supported by the US Department of Energy, Office of Basic Energy Sciences, Materials Sciences and Engineering Division, under Contract No. DE-AC02-76SF00515. E.W.H. was supported by the Gordon and Betty Moore Foundation EPiQS Initiative through the grants GBMF 4305 and GBMF 8691. Computational work was performed on the Sherlock cluster at Stanford University and on resources of the National Energy Research Scientific Computing Center, supported by the U.S. Department of Energy under contract DE-AC02-05CH11231.

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Presenters

  • Rong Zhang

    Stanford University

Authors

  • Rong Zhang

    Stanford University

  • Sijia Zhao

    Stanford University

  • Wen O Wang

    Stanford University

  • Tianyi Liu

    Stanford University

  • Brian Moritz

    SLAC National Accelerator Laboratory

  • Edwin W Huang

    University of Notre Dame

  • Thomas P Devereaux

    Stanford University