d-wave pairing versus stripe order in the two-dimensional Hubbard model

ORAL

Abstract

We study the competition between d-wave superconducting pairing and stripe orders in the ground state of the doped two dimensional Hubbard model. Two complimentary methods, the constrained path auxiliary-field quantum Monte Carlo (CP AFQMC) and Density Matrix Renormalization Group (DMRG), are employed. Pinning fields (antiferromagnetic, pairing, or both) are applied at the edge of the lattice to induce symmetry breaking in the ground state. By detailed comparisons and cross checks, we determine the ground-state properties in large rectangular supercells. Careful extrapolations to the thermodynamic limit are then performed to quantify the long-range behavior of the pairing correlation and its relation to the spin and charge order.

–

Presenters

  • Mingpu Qin

    Department of Physics, College of William and Mary

Authors

  • Mingpu Qin

    Department of Physics, College of William and Mary

  • Chia-Min Chung

    Department of Physics and Astronomy, University of California, Irvine

  • Hao Shi

    Center for Computational Quantum Physics, The Flatiron Institute, The Flatiron Institut, Center for Computational Quantum Physics, Department of Physics, College of William and Mary, Flatiron Institute Simons Foundation, Physics, William & Mary Coll

  • Steven White

    Physics, UC,Irvine, Physics and Astronomy, University of California, Irvine, Department of Physics and Astronomy, University of California, Irvine, Univ of California - Irvine, Department of Physics and Astronomy, University of California at Irvine

  • Shiwei Zhang

    College of William and Mary, Physics, The College of William and Mary, Department of Physics, The College of William and Mary, Department of Physics, College of William and Mary, Physics, William & Mary Coll