Primary-Filling e/3 Quasiparticle Interferometer

Details Primary-Filling e/3 Quasiparticle Interferometer Primary-Filling e/3 Quasiparticle Interferometer

2006-10-26

arxiv.org/abs/cond-mat/0610751v1

Phys. Rev. Lett. 98, 076805 (2007)

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

Scientific paper

10.1103/PhysRevLett.98.076805

We report experimental realization of a quasiparticle interferometer where the entire system is in 1/3 primary fractional quantum Hall state. The interferometer consists of chiral edge channels coupled by quantum-coherent tunneling in two constrictions, thus enclosing an Aharonov-Bohm area. We observe magnetic flux and charge periods h/e and e/3, equivalent to creation of one quasielectron in the island. Quantum theory predicts a 3h/e flux period for charge e/3, integer statistics particles. Accordingly, the observed periods demonstrate the anyonic statistics of Laughlin quasiparticles.

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