Aharonov-Bohm Superperiod in a Laughlin Quasiparticle Interferometer
Abstract
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.
- Publication:
-
Physical Review Letters
- Pub Date:
- December 2005
- DOI:
- arXiv:
- arXiv:cond-mat/0504341
- Bibcode:
- 2005PhRvL..95x6802C
- Keywords:
-
- 73.43.Fj;
- 31.15.Lc;
- 73.23.-b;
- Novel experimental methods;
- measurements;
- Quasiparticle methods;
- Electronic transport in mesoscopic systems;
- Condensed Matter - Mesoscale and Nanoscale Physics;
- Condensed Matter - Strongly Correlated Electrons
- E-Print:
- published version