Ground State of Magic Angle Twisted Bilayer Graphene at Charge Neutrality II

ORAL

Abstract

In magic angle twisted bilayer graphene (MATBG), interactions dominate over the kinetic energy, resulting in correlated insulating states and superconductivity whose origin remains a mystery. Here, using a combination of analytical arguments and numerical calculations we identify a family of candidate insulating ground states at charge neutrality and discuss how external perturbations such as the influence of the substrate or strain can alter the phase diagram.

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Presenters

  • Shang Liu

    • Harvard University

Authors

  • Shang Liu

    • Harvard University

  • Nick Bultinck

    • University of California, Berkeley

  • Eslam Khalaf

    • Harvard University

  • Shubhayu Chatterjee

    • University of California, Berkeley

  • Ashvin Vishwanath

    • Harvard University
    • Physics, Harvard University
    • Department of Physics, Harvard University

  • Michael Zaletel

    • University of California, Berkeley