Direct observation of anyonic braiding statistics at theν=1/3 fractional quantum Hall state
ORAL · Invited
Abstract
Anyons are exotic quasiparticles which exhibit fractional braiding statistics. We report experimental evidence for anyonic braiding statistics at the ν = 1/3 fractional quantum Hall state in a Fabry-Perot interferometer fabricated on a GaAs/AlGaAs heterostructure. The structure incorporates screening wells to suppress Coulomb charging effects, enabling the possibility of observing the anyonic phase without confounding by bulk-edge interaction. We observe Aharonov-Bohm interference with discrete jumps in phase consistent with anyonic phase θ = 2π/3.
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Publication: Nakamura, J., Liang, S., Gardner, G.C. et al. Direct observation of anyonic braiding statistics. Nat. Phys. 16, 931–936 (2020). https://doi.org/10.1038/s41567-020-1019-1
Presenters
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James R Nakamura
Purdue University
Authors
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James R Nakamura
Purdue University
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Shuang Liang
Purdue University
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Geoff Gardner
Purdue University
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Michael J Manfra
Department of Physics and Astronomy, Birck Nanotechnology Center, and Microsoft Quantum Lab Purdue, Purdue University, Purdue University, Purdue University, West Lafayette, Indiana 47907, USA