Observation of anyonic statistics through quantum Hall interferometry

ORAL

Abstract

Fractional quantum Hall states have been predicted to have quasiparticle excitations which obey anyonic braiding statistics. Interferometry has been proposed as an experimental method to probe these exotic statistics. We present measurements of interference at the ν = 1/3 fractional quantum Hall state. We observe discrete jumps in phase which are consistent with the anyonic phase contribution when the number of localized quasiparticles changes. We also observe a transition in interference behavior when the magnetic field is varied away from the center of the state, which is consistent with a recent theoretical analysis predicting a shift from simple Aharonov-Bohm interference to regimes in which quasiparticles are created with period Φ0.

*This work is supported by the US Department of Energy, Office of Science and Office of Basic Energy Sciences (award no. DE-SC0020138).

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Presenters

  • James Nakamura

    • Purdue University

Authors

  • James Nakamura

    • Purdue University

  • Shuang Liang

    • Purdue University

  • Geoff C Gardner

    • Department of Physics and Astronomy and Microsoft Quantum Purdue, Purdue University, West Lafayette, Indiana 47907 USA
    • Purdue University

  • Michael Manfra

    • Purdue University
    • Purdue Univ
    • Department of Physics and Astronomy and Microsoft Quantum Purdue, Purdue University, West Lafayette, Indiana 47907 USA
    • Department of Physics and Astronomy and Station Q Purdue, Purdue University
    • Niels Bohr Institute, Microsoft Station Q, University of Copenhagen, Universitetsparken 5, 2100 Copenhagen, Denmark
    • Department of Physics and Astronomy, Purdue University
    • Birck Nanotechnology Center and Microsoft Quantum Purdue, Purdue University