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Quasiparticle Interaction in the Three-dimensional Uniform Electron Gas

ORAL

Abstract

We establish the quasiparticle interaction in the three-dimensional uniform electron gas using a controlled effective field theory approach---the recently developed variational diagrammatic Monte Carlo method. We accurately determine the angle-resolved Landau interaction function as well as the Landau parameters. Several emergent features of the forward-scattering electron interaction on the Fermi surface are identified. In particular, we find that the different scattering channels of two electrons with parallel momenta and opposite spins almost perfectly cancel out, indicating the electrons are nearly asymptotically free in this limit.

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Presenters

  • Bao-Zong Wang

    University of Science and Technology of China

Authors

  • Bao-Zong Wang

    University of Science and Technology of China

  • Pengcheng Hou

    University of Science and Technology of China

  • Youjin Deng

    University of Science and Technology of China, National Laboratory for Physical Sciences at Microscale and Department of Modern Physics, University of Science and Technology of China

  • Kristjan Haule

    Rutgers University, New Brunswick, Physics & Astronomy, Rutgers University, Piscataway, NJ 08854, USA, Department of Physics and Astronomy, Rutgers University, Dept. of Physics and Astronomy, Rutgers University, New Brunswick, Department of Physics and Astronomy, Rutgers, The State University of New Jersey

  • Kun Chen

    Simons Foundation, Department of Physics and Astronomy, Rutgers, The State University of New Jersey, Flatiron Institute, Center for Computational Quantum Physics, Center for Computational Quantum Physics, Flatiron Institute