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Pairing correlation of the three-band Hubbard model with the nearest attraction

Author

Listed:
  • Xiao Zhang

    (Department of Physics, Beijing Normal University, Beijing 100875, P. R. China)

  • Zimu Xue

    (Department of Physics, Beijing Normal University, Beijing 100875, P. R. China)

  • Chen Yang

    (Department of Physics, Beijing Normal University, Beijing 100875, P. R. China)

  • Tianxing Ma

    (Department of Physics, Beijing Normal University, Beijing 100875, P. R. China)

Abstract

To gain a deeper understanding of the high-temperature superconductivity in doped cuprates, the constrained-path quantum Monte Carlo method was used to explore the superconducting pairing correlation function and effective pairing interaction in the three-band Hubbard model. Our main observation was that in the low doping region, compared to other symmetries, d-wave superconducting pairing dominates. The Coulomb interaction U suppresses d-wave pairing correlation, while the effective pairing interaction is both enhanced by the increasing U and the nearest attraction. These results are used to understand the superconducting state in copper oxide high-temperature superconductors.

Suggested Citation

  • Xiao Zhang & Zimu Xue & Chen Yang & Tianxing Ma, 2023. "Pairing correlation of the three-band Hubbard model with the nearest attraction," International Journal of Modern Physics C (IJMPC), World Scientific Publishing Co. Pte. Ltd., vol. 34(12), pages 1-10, December.
    • Handle: RePEc:wsi:ijmpcx:v:34:y:2023:i:12:n:s0129183123501565
    DOI: 10.1142/S0129183123501565
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