Electronic Mach-Zehnder interferometer as a tool to probe fractional statistics

Details Electronic Mach-Zehnder interferometer as a tool to probe fractional statistics Electronic Mach-Zehnder interferometer as a tool to probe fractional statistics

2005-06-14

arxiv.org/abs/cond-mat/0506302v5

Phys. Rev. B 74, 045319 (2006)

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

22 pages; 8 figures

Scientific paper

10.1103/PhysRevB.74.045319

We study transport through an electronic Mach-Zehnder interferometer recently devised at the Weizmann Institute. We show that this device can be used to probe statistics of quasiparticles in the fractional quantum Hall regime. We calculate the tunneling current through the interferometer as the function of the Aharonov-Bohm flux, temperature and voltage bias, and demonstrate that its flux-dependent component is strongly sensitive to the statistics of tunneling quasiparticles. More specifically, the flux-dependent and flux-independent contributions to the current are related by a power law, the exponent being a function of the quasiparticle statistics.

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