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. Author manuscript; available in PMC: 2020 Mar 18.
Published in final edited form as: Rev Mod Phys. 2019;91(1):10.1103/revmodphys.91.015005. doi: 10.1103/revmodphys.91.015005

FIG. 33.

FIG. 33.

Distinct topological phases of the Kitaev model, evidenced by the trajectory of h(q)/|h(q)| on the unit sphere, as q scans the Brillouin zone. Left (μ < −2J) and right (μ > 2J): topologically trivial phases, with a zero winding around the origin. Middle (|μ| < 2J): topological phase.