Topological Effects in Fractional Chern Insulators

Presentations

• Hartree-Fock for symmetry-broken phases of rhombohedral N-layer graphene/hBN.

  Oral-In-person

  March 17, 2026, 3:30 PM – March 17, 2026, 3:42 PM

  Presenters

  • Chase Hanson

    • University of California, Davis

  Authors

  • Chase Hanson

    • University of California, Davis

  • Alex Thomson

    • University of California, Davis

  View abstract →

• Identifying Instabilities with Quantum Geometry in Flat Band Systems

  Oral-In-person

  March 17, 2026, 3:42 PM – March 17, 2026, 3:54 PM

  Publication: arXiv:2504.03882

  Presenters

  • Jia-Xin Zhang

    • Kavli Institute for Theoretical Physics, UCSB

  Authors

  • Jia-Xin Zhang

    • Kavli Institute for Theoretical Physics, UCSB

  • Wen Wang

    • University of California, Santa Barbara

  • Leon Balents

    • University of California, Santa Barbara

  • Lucile Savary

    • CNRS

  View abstract →

• A Unified Mean-field Understanding of Fractional Chern Insulator Stability

  Oral-In-person

  March 17, 2026, 3:54 PM – March 17, 2026, 4:06 PM

  Publication: arXiv:2508.03915

  Presenters

  • Xiaodong Hu

    • University of Washington

  Authors

  • Xiaodong Hu

    • University of Washington

  • Ying Ran

    • Boston College

  • Di Xiao

    • University of Washington

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• Moiré Capacitor Effect Stabilizes Fractional Chern Insulators in Rhombohedral Graphene

  Oral-In-person

  March 17, 2026, 4:06 PM – March 17, 2026, 4:18 PM

  Publication: Phys. Rev. B 112, 075110 (2025)
  Phys. Rev. B 109, 205122 (2024)
  Moiré Capacitor Effect and the Origin of Fractionalization in Rhombohedral Graphene (In preparation)

  Presenters

  • Jonah Herzog-Arbeitman

    • Princeton University

  Authors

  • Jonah Herzog-Arbeitman

    • Princeton University

  • Heqiu Li

    • Donostia international physics center

  • Yves Kwan

    • University of Texas at Dallas

  • Jiabin Yu

    • University of Florida

  • Nicolas Regnault

    • Flatiron institute

  • Andrei Bernevig

    • Princeton University

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• Discovery of Stable Multi-Band Fractional Chern Insulators in Rhombohedral Multilayer Graphene

  Oral-In-person

  March 17, 2026, 4:18 PM – March 17, 2026, 4:30 PM

  Presenters

  • Heqiu Li

    • Donostia international physics center

  Authors

  • Jonah Herzog-Arbeitman

    • Princeton University

  • Yves Kwan

    • University of Texas at Dallas

  • Heqiu Li

    • Donostia international physics center

  • Nicolas Regnault

    • Princeton

  • Andrei Bernevig

    • Princeton University

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• Bosonic fractional Chern insulators from a strongly coupled fermionic Haldane-Holstein model

  Oral-In-person

  March 17, 2026, 4:30 PM – March 17, 2026, 4:42 PM

  Presenters

  • Zezhu Wei

    • University of Washington

  Authors

  • Zezhu Wei

    • University of Washington

  • Ang-Kun Wu

    • Los Alamos National Laboratory

  • Shizeng Lin

    • Los Alamos National Laboratory (LANL)

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• Anyon Wigner crystals and phase competition in fractional quantum hall and Chern insulators

  Oral-In-person

  March 17, 2026, 4:42 PM – March 17, 2026, 4:54 PM

  Presenters

  • Anuruddh Rai

    • University of Texas at Austin

  Authors

  • Anuruddh Rai

    • University of Texas at Austin

  • Tobias Wolf

    • University of Texas at Austin

  • Allan MacDonald

    • University of Texas at Austin

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• Unraveling the insulating Chern states of magic-angle twisted bilayer graphene at finite magnetic field via the topological heavy fermion framework

  Oral-In-person

  March 17, 2026, 4:54 PM – March 17, 2026, 5:06 PM

  Presenters

  • Keshav Singh

    • National High Magnetic Field Laboratory

  Authors

  • Keshav Singh

    • National High Magnetic Field Laboratory

  • Juan Felipe Mendez-Valderrama

    • Princeton University

  • Andrei Bernevig

    • Princeton University

  • Oskar Vafek

    • University of Minnesota Twin Cities

  View abstract →

• Realization of Laughlin's "Anyon Superconductivity" in a Hubbard-Hofstadter model

  Oral-In-person

  March 17, 2026, 5:06 PM – March 17, 2026, 5:18 PM

  Presenters

  • Clemens Kuhlenkamp

  Authors

  • Clemens Kuhlenkamp

  • Stefan Divic

    • University of Pennsylvania

  • Michael Zaletel

    • University of California, Berkeley

  • Tomohiro Soejima

  • Ashvin Vishwanath

    • Harvard University

  View abstract →

• Chiral superconductivity near a fractional Chern insulator

  Oral-In-person

  March 17, 2026, 5:18 PM – March 17, 2026, 5:30 PM

  Publication: arXiv: 2507.07921

  Presenters

  • Taige Wang

    • University of California, Berkeley

  Authors

  • Taige Wang

    • University of California, Berkeley

  • Michael Zaletel

    • University of California, Berkeley

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• Resonating-valence-bond superconductor from small Fermi surface in twisted bilayer graphene

  Oral-In-person

  March 17, 2026, 5:30 PM – March 17, 2026, 5:42 PM

  Presenters

  • Jingyu Zhao

    • Johns Hopkins University

  Authors

  • Jingyu Zhao

    • Johns Hopkins University

  • Ya-Hui Zhang

  View abstract →

• Response of Crystalline Symmetry Protected Topological Order to Symmetry Defects in the Presence of Interaction

  Oral-In-person

  March 17, 2026, 5:42 PM – March 17, 2026, 5:54 PM

  Presenters

  • Lu Zhang

    • The Hong Kong University of Science and Technology (HKUST)

  Authors

  • Lu Zhang

    • The Hong Kong University of Science and Technology (HKUST)

  • Min Long

  • Xue-Yang Song

    • MIT

  View abstract →

• Stability of Correlated Phases under Band Hybridization: A Neural‑Network Quantum‑State Study

  Oral-In-person

  March 17, 2026, 5:54 PM – March 17, 2026, 6:06 PM

  Presenters

  • Jihang Zhu

    • University of Washington

  Authors

  • Jihang Zhu

    • University of Washington

  • Xiaodong Hu

    • University of Washington

  • Di Xiao

    • University of Washington

  • Ting Cao

    • University of Washington

  View abstract →