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

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

2009-01-23

arxiv.org/abs/0901.3674v3

New J. Phys. 11 (2009) 093027

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

10 pages, 3 figures. To appear in New Journal of Physics

Scientific paper

10.1088/1367-2630/11/9/093027

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 quasiparticles, 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 quasiparticles in the laboratory. Various physically realistic system sizes are considered and exact predictions for such experiments are provided.

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