Emergent Topological and Correlated States in Multilayer Quantum Systems

Presentations

• Higher Landau Level Analogues in Twisted TMDs

  Oral-In-person · Withdrawn

  March 17, 2026, 8:00 AM – March 17, 2026, 8:12 AM

  Presenters

  • Dathan Ault-McCoy

    • Stony Brook University (SUNY)

  Authors

  • Dathan Ault-McCoy

    • Stony Brook University (SUNY)

  • Jennifer Cano

    • Stony Brook University

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• A time-domain view of fractional Chern insulators in twisted MoTe₂ bilayers

  Oral-In-person

  March 17, 2026, 8:12 AM – March 17, 2026, 8:24 AM

  Presenters

  • Gillian Minarik

    • Columbia University

  Authors

  • Gillian Minarik

    • Columbia University

  • Yiping Wang

    • Columbia University

  • Jeongheon Choe

  • Xiaoyang Zhu

    • Columbia University

  • Xiaodong Xu

    • University of Washington

  • James Hone

    • Columbia University

  • Weijie Li

    • University of Washington

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• A Zoo of quantum phases in twisted MoTe2 bilayers

  Oral-In-person · Withdrawn

  March 17, 2026, 8:24 AM – March 17, 2026, 8:36 AM

  Publication: Wang, Y., Choe, J., Anderson, E. et al. Hidden states and dynamics of fractional fillings in twisted MoTe2 bilayers. Nature 641, 1149–1155 (2025). https://doi.org/10.1038/s41586-025-08954-8

  Presenters

  • Yiping Wang

    • Columbia University

  Authors

  • Yiping Wang

    • Columbia University

  • Jeongheon Choe

  • Eric Anderson

    • University of Washington

  • Weijie Li

    • University of Washington

  • Julian Ingham

  • Eric Arsenault

  • Yiliu Li

    • Columbia University

  • Xiaodong Hu

    • University of Washington

  • Takashi Taniguchi

    • National Institute for Materials Science

  • Kenji Watanabe

    • National Institute for Materials Science

  • Xavier Roy

    • Columbia University

  • Dmitri Basov

  • Di Xiao

    • University of Washington

  • Raquel Queiroz

    • Columbia University

  • James Hone

    • Columbia University

  • Xiaodong Xu

    • University of Washington

  • Xiaoyang Zhu

    • Columbia University

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• Charge Density Waves in Twisted MoTe₂ Near the Magic Angle

  Oral-In-person

  March 17, 2026, 8:36 AM – March 17, 2026, 8:48 AM

  Presenters

  • Sparsh Mishra

    • University of Texas at Austin

  Authors

  • Sparsh Mishra

    • University of Texas at Austin

  • Tobias Wolf

    • University of Texas at Austin

  • Allan MacDonald

    • University of Texas at Austin

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• Isolated Flat Bands in Small-Angle Twisted Bilayer Graphene via hBN Alignment

  Oral-In-person

  March 17, 2026, 8:48 AM – March 17, 2026, 9:00 AM

  Presenters

  • Naoto Nakatsuji

    • Osaka University

  Authors

  • Naoto Nakatsuji

    • Osaka University

  • Manato Fujimoto

    • Univ of Tokyo

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• Interlayer exciton condensates between second Landau level orbitals in double bilayer graphene

  Oral-In-person

  March 17, 2026, 9:00 AM – March 17, 2026, 9:12 AM

  Presenters

  • Zeyu Hao

    • University of California, Berkeley

  Authors

  • Zeyu Hao

    • University of California, Berkeley

  • Andrew Zimmerman

    • Harvard University

  • Kenji Watanabe

    • National Institute for Materials Science

  • Takashi Taniguchi

    • National Institute for Materials Science

  • Philip Kim

    • Harvard University

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• Coulomb Interaction-Stabilized Integer and Fractional Chern Insulators in Twisted Rhombohedral M+N Multilayer Graphene 

  Oral-In-person

  March 17, 2026, 9:12 AM – March 17, 2026, 9:24 AM

  Publication: arXiv:2505.07981

  Presenters

  • Phong Vo

    • National High Magnetic Field Laboratory

  Authors

  • Phong Vo

    • National High Magnetic Field Laboratory

  • Cyprian Lewandowski

    • National High Magnetic Field Laboratory

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• Nonlocal Moments and Dirac Trions in the Concentrated Chern Bands of Twisted Bilayer Graphene

  Oral-In-person

  March 17, 2026, 9:24 AM – March 17, 2026, 9:36 AM

  Publication: P. J. Ledwith, J. Dong, A. Vishwanath, and E. Khalaf, "Nonlocal Moments and Mott Semimetal in the Chern Bands of Twisted Bilayer Graphene," Phys. Rev. X, vol. 15, no. 2, p. 021087, Jun. 2025, doi: 10.1103/PhysRevX.15.021087.
  
  P. J. Ledwith, A. Vishwanath, and E. Khalaf, "Exotic Carriers from Concentrated Topology: Dirac Trions as the Origin of the Missing Spectral Weight in Twisted Bilayer Graphene," May 13, 2025, arXiv: arXiv:2505.08779. doi: 10.48550/arXiv.2505.08779.

  Presenters

  • Patrick Ledwith

    • Massachusetts Institute of Technology

  Authors

  • Patrick Ledwith

    • Massachusetts Institute of Technology

  • Junkai Dong

    • Harvard University

  • Ashvin Vishwanath

    • Harvard University

  • Eslam Khalaf

    • Harvard University

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• Anyon superfluidity of excitons in quantum Hall bilayers

  Oral-In-person

  March 17, 2026, 9:36 AM – March 17, 2026, 9:48 AM

  Publication: arXiv: 2508.14894
  arXiv: 2506.02108

  Presenters

  • Zhaoyu Han

    • Harvard University

  Authors

  • Zhaoyu Han

    • Harvard University

  • Taige Wang

  • Zhihuan Dong

    • UC Berkeley

  • Michael Zaletel

    • University of California, Berkeley

  • Ashvin Vishwanath

    • Harvard University

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• Numerical evidence of anyonic exciton superfluidity in ν=1/3+1/3 quantum Hall bilayers

  Oral-In-person

  March 17, 2026, 9:48 AM – March 17, 2026, 10:00 AM

  Presenters

  • Jiechao Feng

    • University of California, Berkeley

  Authors

  • Jiechao Feng

    • University of California, Berkeley

  • Zhaoyu Han

    • Harvard University

  • Taige Wang

  • Zhihuan Dong

    • UC Berkeley

  • Ashvin Vishwanath

    • Harvard University

  • Michael Zaletel

    • University of California, Berkeley

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• Interplay of Excitonic and Topological Effects in few-layer Bi₂Te₃

  Oral-In-person

  March 17, 2026, 10:00 AM – March 17, 2026, 10:12 AM

  Presenters

  • Gurjyot Sethi

    • University of California, Berkeley

  Authors

  • Gurjyot Sethi

    • University of California, Berkeley

  • Jack McArthur

    • University of California, Berkeley

  • Shang Ren

    • University of California, Berkeley

  • Fang Zhang

    • University of California, Berkeley

  • Xiaoxun Gong

    • University of California, Berkeley

  • Steven Louie

    • University of California, Berkeley

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• Theory of Magnetoroton Bands and Three-Point Correlations in Fractional Quantum Hall States of Moiré Materials

  Oral-In-person

  March 17, 2026, 10:12 AM – March 17, 2026, 10:24 AM

  Publication: arXiv:2502.17574

  Presenters

  • Bishoy Kousa

    • University of Texas at Austin

  Authors

  • Bishoy Kousa

    • University of Texas at Austin

  • Nicolás Morales-Durán

    • Flatiron Institute

  • Tobias Wolf

    • University of Texas at Austin

  • Eslam Khalaf

    • Harvard University

  • Allan MacDonald

    • University of Texas at Austin

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• Quantized spin Hall effect and high-order van Hove singularities in square-octagonal MA₂Z₄ compounds

  Oral-In-person · Withdrawn

  March 17, 2026, 10:24 AM – March 17, 2026, 10:36 AM

  Publication: https://arxiv.org/abs/2510.12935

  Presenters

  • Rahul Verma

    • Tata Institute of Fundamental Research (TIFR)

  Authors

  • Rahul Verma

    • Tata Institute of Fundamental Research (TIFR)

  • Yash Vardhan

  • Hsin Lin

    • Academia Sinica

  • Bahadur Singh

    • Tata Institute of Fundamental Research (TIFR)

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• Wannier states and bulk-boundary correspondence in fragile topological insulators

  Oral-In-person

  March 17, 2026, 10:36 AM – March 17, 2026, 10:48 AM

  Presenters

  • Haylen Gerhard

    • Emory University

  Authors

  • Haylen Gerhard

    • Emory University

  • Yifan Wang

    • Emory University

  • Wladimir Benalcazar

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• Moiré fractional Chern insulators from topological bosons and trivial fermions

  Oral-In-person

  March 17, 2026, 10:48 AM – March 17, 2026, 11:00 AM

  Publication: R. Perea-Causin, H. Liu, E. J. Bergholtz, Exciton fractional Chern insulators in moiré heterostructures, accepted in Physical Review Research, Preprint at arXiv:2504.08026 (2025).
  H. Liu, R. Perea-Causin, Z. Liu, E. J. Bergholtz, Topological order without band topology in moiré graphene, Preprint at arXiv:2510.15027 (2025).

  Presenters

  • Raul Perea-Causin

    • Stockholm University

  Authors

  • Raul Perea-Causin

    • Stockholm University

  • Hui Liu

  • Zhao Liu

    • Zhejiang University

  • Emil Bergholtz

    • Stockholm Univ

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