e/3 Laughlin quasiparticle primary-filling nu=1/3 interferometer.
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 the creation of one quasielectron in the island. Quantum theory predicts a 3h/e flux period for charge e/3, integer statistics particles. Thus, the observed periods demonstrate the anyonic braiding statistics of Laughlin quasiparticles.
Camino
F E
FE
Department of Physics, Stony Brook University, Stony Brook, New York 11794-3800, USA.
Zhou
Wei
W
Goldman
V J
VJ