Bulletin of the American Physical Society
2007 APS March Meeting
Volume 52, Number 1
Monday–Friday, March 5–9, 2007; Denver, Colorado
Session D7: Signatures of Non-Abelian Quantum Hall States
2:30 PM–5:30 PM,
Monday, March 5, 2007
Colorado Convention Center Room: Korbel 4A-4B
Sponsoring Unit: DCMP
Chair: Steven Simon, Lucent Technologies
Abstract ID: BAPS.2007.MAR.D7.5
Abstract: D7.00005 : Detecting fractional statistics with anyonic Mach-Zehnder interferometer*
4:54 PM–5:30 PM
Preview Abstract Abstract
Fractionally charged quasiparticles in the quantum Hall state with filling factor $\nu=5/2$ are expected to obey non-Abelian statistics. We demonstrate that their statistics can be probed by transport measurements in a recently fabricated device, an electronic Mach-Zehnder interferometer. The tunneling current through the interferometer exhibits a characteristic dependence on the magnetic flux and a non-analytic dependence on the tunneling amplitudes which can be controlled by gate voltages. In contrast to the case of Abelian statistics, the I-V curve is asymmetric. \vskip 3mm  K. T. Law, D. E. Feldman, and Y. Gefen, Phys. Rev. B 74, 045319 (2006). \vskip 1mm  D. E. Feldman and A. Kitaev, cond-mat/0607541.
*This research was supported by NSF under Grant No. DMR-0544116.
To cite this abstract, use the following reference: http://meetings.aps.org/link/BAPS.2007.MAR.D7.5
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