Detecting non-abelian statistics with an electronic Mach-Zehnder interferometer

被引：72

作者：

Feldman, D. E. ^{[1
]}

Kitaev, Alexei

机构：

[1] Brown Univ, Dept Phys, Providence, RI 02912 USA

[2] CALTECH, Pasadena, CA 91125 USA

[3] Univ Calif Santa Barbara, Microsoft Project Q, Santa Barbara, CA 93106 USA

来源：

PHYSICAL REVIEW LETTERS | 2006年 / 97卷 / 18期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1103/PhysRevLett.97.186803

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

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.

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