Detecting non-Abelian statistics with an electronic Mach-Zehnder interferometer.
Fractionally charged quasiparticles in the quantum Hall state with a filling factor nu=5/2 are expected to obey non-Abelian statistics. We demonstrate that their statistics can be probed by transport measurements in an electronic Mach-Zehnder interferometer. The tunneling current through the interferometer exhibits a characteristic dependence on the magnetic flux and a nonanalytic dependence on the tunneling amplitudes which can be controlled by gate voltages.
Feldman
D E
DE
Department of Physics, Brown University, Providence, Rhode Island 02912, USA.
Kitaev
Alexei
A