Aharonov-Bohm superperiod in a laughlin quasiparticle interferometer

被引:91
作者
Camino, FE [1 ]
Zhou, W [1 ]
Goldman, VJ [1 ]
机构
[1] SUNY Stony Brook, Dept Phys, Stony Brook, NY 11794 USA
关键词
D O I
10.1103/PhysRevLett.95.246802
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
We report an Aharonov-Bohm superperiod of five magnetic flux quanta (5h/e) observed in a Laughlin quasiparticle interferometer, where an edge channel of the 1/3 fractional quantum Hall fluid encircles an island of the 2/5 fluid. This result does not violate the gauge invariance argument of the Byers-Yang theorem because the magnetic flux, in addition to affecting the Aharonov-Bohm phase of the encircling 1/3 quasiparticles, creates the 2/5 quasiparticles in the island. The superperiod is accordingly understood as imposed by the anyonic statistical interaction of Laughlin quasiparticles.
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