Quenching the Kitaev honeycomb model

Louk Rademaker

doi:10.21468/scipostphys.7.5.071

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arXiv · 1710.09761

Quenching the Kitaev honeycomb model

Louk Rademaker

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Abstract

I studied the non-equilibrium response of an initial N\'{e}el state under time evolution with the Kitaev honeycomb model. With isotropic interactions ($J_x = J_y = J_z$) the system quickly loses its antiferromagnetic order and crosses over into a steady state valence bond solid, which can be inferred from the long-range dimer correlations. There is no signature of a dynamical phase transition. Upon including anisotropy ($J_x = J_y \neq J_z$), an exponentially long prethermal regime appears with persistent magnetization oscillations whose period derives from an effective toric code.

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Louk Rademaker. 2017-10-26. Quenching the Kitaev honeycomb model. https://doi.org/10.21468/scipostphys.7.5.071

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