2022
DOI: 10.1038/s41467-022-27958-w
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Impact of bulk-edge coupling on observation of anyonic braiding statistics in quantum Hall interferometers

Abstract: Quantum Hall interferometers have been used to probe fractional charge and statistics of quasiparticles. We present measurements of a small Fabry–Perot interferometer in which the electrostatic coupling constants which affect interferometer behavior can be determined experimentally. Near the center of the ν = 1/3 state this device exhibits Aharonov–Bohm interference interrupted by a few discrete phase jumps, and Φ0 oscillations at higher and lower magnetic fields, consistent with theoretical predictions for de… Show more

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Cited by 19 publications
(8 citation statements)
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“…4c and 4d. The voltage 𝑉 𝑃𝐺 values at which the phase jumps occur do not depend on the magnetic field, unlike what is observed for the GaAs FPIs 10,11 . Focusing on the constant density trajectory, , (Fig.…”
Section: Tunability Between Constant Filling and Constant Densitymentioning
confidence: 61%
See 1 more Smart Citation
“…4c and 4d. The voltage 𝑉 𝑃𝐺 values at which the phase jumps occur do not depend on the magnetic field, unlike what is observed for the GaAs FPIs 10,11 . Focusing on the constant density trajectory, , (Fig.…”
Section: Tunability Between Constant Filling and Constant Densitymentioning
confidence: 61%
“…Electron-based interferometry in the framework of the FQHE has advanced considerably during the last two decades in the GaAs/AlGaAs heterostructure platform grown by Molecular beam epitaxial (MBE) [10][11][12][13][14][15] . The two main interferometers are the Mach-Zehnder interferometer (MZI) 13,[16][17][18][19] and the Fabry-Pérot interferometer (FPI) 8,[10][11][12][20][21][22][23] .…”
Section: Introductionmentioning
confidence: 99%
“…The experiment of Nakamura et al 68,69 is a kind of Fabry-Perot interferometer. It central idea is depicted schematically in Figure 7.…”
Section: Experimental Observations Of Anyonsmentioning
confidence: 99%
“…Today, the FQHE provides the only experimentally accessible system for observing anyons-quasiparticles with non-Fermi and non-Bose statistics. The pioneering works on the experimental detection of quasiparticles with abelian anyonic statistics π/3 in the FQHE state of 1/3 [1,2] opened fundamentally new prospects for incorporating anyons into applied physics. At present, the FQHE states with non-abelian anyons in the fractional states of 5/2 and 12/5 have been the focus of intense research [3,4].…”
Section: Introductionmentioning
confidence: 99%