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Non-Abelian statistics as a Berry phase in exactly solvable models

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Published 16 September 2009 Published under licence by IOP Publishing Ltd
, , Citation Ville Lahtinen and Jiannis K Pachos 2009 New J. Phys. 11 093027 DOI 10.1088/1367-2630/11/9/093027

1367-2630/11/9/093027

Abstract

We demonstrate how to directly study non-Abelian statistics for a wide class of exactly solvable many-body quantum systems. By employing exact eigenstates to simulate the adiabatic transport of a model's quasi-particles, the resulting Berry phase provides a direct demonstration of their non-Abelian statistics. We apply this technique to Kitaev's honeycomb lattice model and explicitly demonstrate the existence of non-Abelian Ising anyons confirming the previous conjectures. Finally, we present the manipulations needed to transport and detect the statistics of these quasi-particles in the laboratory. Various physically realistic system sizes are considered and exact predictions for such experiments are provided.

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10.1088/1367-2630/11/9/093027