Shot noise measurement at v = 5/2 quantum Hall state

The v = 5/2 quantum Hall state is conjectured to be a Moore-Read state. According to that, quasiparticles carry a charge of e/4 and obey a 'non-abelian'statistics. Previous measurements of the tunneling quasiparticles charge (across a quantum point contact), via shot-noise measurements [1]...

Full description

Saved in:
Bibliographic Details
Published in:29th International Conference on the Physics of Semiconductors 2008-07, Vol.1199, p.239-240
Main Authors: Dolev, M, Gross, Y, Heiblum, M, Umansky, V, Stern, A, Mahalu, D
Format: Article
Language:English
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:The v = 5/2 quantum Hall state is conjectured to be a Moore-Read state. According to that, quasiparticles carry a charge of e/4 and obey a 'non-abelian'statistics. Previous measurements of the tunneling quasiparticles charge (across a quantum point contact), via shot-noise measurements [1], were indeed consistent with the charge of the quasiparticles being e/4, and were inconsistent with other potentially possible values, such as e/2 and e. The large scattering of the experimental data in these measurements made the precise determination of the quasi-particle charge hard to achieve. Here we present new and improved shot noise data, which provide an even more conclusive evidence for the tunneling of e/4 quasiparticles at the v = 5/2 state.
ISSN:0094-243X