Physics – Condensed Matter – Mesoscale and Nanoscale Physics
Scientific paper
2011-11-28
Physics
Condensed Matter
Mesoscale and Nanoscale Physics
8 pages including supplemental material; 2 figures; minor error corrections; several references added
Scientific paper
We consider signatures of abelian and nonabelian quasiparticle statistics in quantum Hall Fabry-Perot interferometers. When quasiparticles enter and exit the interference cell, for instance due to glassy motion in the dopant layer, the anyonic phase can be observed in phase jumps. In the case of the nonabelian nu=5/2 state, if the interferometer is small, we argue that free Majorana states in the interference cell are either strongly coupled to one another or are strongly coupled to the edge. We analyze the expected phase jumps and in particular suggest that changes in the parity of the Majorana ground state should gives rise to characteristic jumps of pi in the interference phase.
Rosenow Bernd
Simon Steven H.
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