Stripes and superconductivity in the two-dimensional Hubbard model

ORAL

Abstract

The stripes have been shown the ground state in the doped two-dimensional Hubbard model for a particular interaction. In this work we discuss the superconductivity in the stripes. We employ two of the most powerful methods, density matrix renormalization group and constrained-path auxiliary-field Monte Carlo to study the superconductivity in the stripes on finite-size cylinders and in the thermodynamic limit. By studying the pair-pair correlation and the local pairing order, we show that no long-range superconductivity exists in the ground-state stripes. In addition we discuss the mixture of stripes with different stripe fillings, and the effect on the superconductivity.

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Presenters

  • Chia-Min Chung

    Department of Physics, Ludwig-Maximilians-Universität München (LMU)

Authors

  • Chia-Min Chung

    Department of Physics, Ludwig-Maximilians-Universität München (LMU)

  • Mingpu Qin

    Department of Physics, College of William and Mary

  • Hao Shi

    CCQ, Flatiron Institute, Simons Foundation, Center for Computational Quantum Physics, Flatiron Institute, Simons Foundation

  • Ettore Vitali

    Department of Physics, College of William and Mary, California State University, Fresno

  • Claudius Hubig

    Max-Planck-Institut für Quantenoptik, Arnold Sommerfeld Center, Ludwig Maximilians University, Garching, Max-Planck-Institut für Quantenoptik

  • Ulrich Joseph Schollwoeck

    Department of Physics, Ludwig-Maximilians-Universität München (LMU), Arnold Sommerfeld Center, Ludwig Maximilians University, München, Ludwig-Maximilians-Universität

  • Steven Robert White

    University of California, Irvine

  • Shiwei Zhang

    CCQ, Flatiron Institute, Simons Foundation, Department of Physics, William & Mary, Department of Physics, College of William and Mary, Physics, College of William and Mary