Shot noise in an anyonic Mach-Zehnder interferometer

被引:67
作者
Feldman, D. E. [1 ]
Gefen, Yuval
Kitaev, Alexei
Law, K. T.
Stern, Ady
机构
[1] Brown Univ, Dept Phys, Providence, RI 02912 USA
[2] Weizmann Inst Sci, Phys Mat Condensee Dept, IL-76100 Rehovot, Israel
[3] CALTECH, Pasadena, CA 91125 USA
[4] Univ Calif Santa Barbara, Microsoft Prof Q, Santa Barbara, CA 93106 USA
基金
美国国家科学基金会;
关键词
D O I
10.1103/PhysRevB.76.085333
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
We show how shot noise in an electronic Mach-Zehnder interferometer in the fractional quantum Hall regime probes the charge and statistics of quantum Hall quasiparticles. The dependence of the noise on the magnetic flux through the interferometer allows for a simple way to distinguish Abelian from non-Abelian quasiparticle statistics. In the Abelian case, the Fano factor (in units of the electron charge) is always lower than unity. In the non-Abelian case, the maximal Fano factor as a function of the magnetic flux exceeds 1.
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页数:9
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