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3D Non-Abelian Anyons: Degeneracy Splitting and Detection by Adiabatic Cooling

By Seiji J. Yamamoto, Michael Freedman and Kun Yang

Abstract

3D non-abelian anyons have been theoretically proposed to exist in heterostructures composed of type II superconductors and topological insulators. We use realistic material parameters for a device derived from Bi$_2$Se$_3$ to quantitatively predict the temperature and magnetic field regimes where an experiment might detect the presence of these exotic states by means of a cooling effect. Within the appropriate parameter regime, an adiabatic increase of the magnetic field will result in a decrease of system temperature when anyons are present. If anyons are not present, the same experiment would result in heating.Comment: 7 pages, 3 figure

Topics: Condensed Matter - Superconductivity, Condensed Matter - Mesoscale and Nanoscale Physics
Year: 2011
DOI identifier: 10.1103/PhysRevB.84.104503
OAI identifier: oai:arXiv.org:1102.5742
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