Transport in the Laughlin quasiparticle interferometer: Evidence for topological protection in an anyonic qubit

Details Transport in the Laughlin quasiparticle interferometer: Evidence for topological protection in an anyonic qubit Transport in the Laughlin quasiparticle interferometer: Evidence for topological protection in an anyonic qubit

2006-06-28

arxiv.org/abs/cond-mat/0606742v1

Phys. Rev. B 74, 115301 (2006)

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

13 pages, 10 figures

Scientific paper

10.1103/PhysRevB.74.115301

We report experiments on temperature and Hall voltage bias dependence of the superperiodic conductance oscillations in the novel Laughlin quasiparticle interferometer, where quasiparticles of the 1/3 fractional quantum Hall fluid execute a closed path around an island of the 2/5 fluid. The amplitude of the oscillations fits well the quantum-coherent thermal dephasing dependence predicted for a two point-contact chiral edge channel interferometer in the full experimental temperature range 10.2

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