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Probing integer and fractional quantum Hall states in electronic interferometers

The fractional quantum Hall states are predicted to host exotic quasiparticles carrying fractional charge and obeying anyonic braiding statistics. It has been proposed that these properties may be observed through interference experiments. Our efforts focus on fabricating electronic Fabry-Perot interferometers on ultra-high quality GaAs wafers in order to probe fractional charge and statistics. Devices are measured at […]