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arXiv · 1701.04214

Dynamical quantum phase transitions in the quantum Potts chain

C. Karrasch·D. Schuricht
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Abstract

We analyze the dynamics of the return amplitude following a sudden quench in the three-state quantum Potts chain. For quenches crossing the quantum critical point from the paramagnetic to the ferromagnetic phase, the corresponding rate function is non-analytic at critical times and behaves linearly in their vicinity. In particular, we find no indication of a link between the time evolution close to the critical times and the scaling properties of the quantum critical point in the Potts chain.

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C. Karrasch, D. Schuricht. 2017-02-24. Dynamical quantum phase transitions in the quantum Potts chain. https://doi.org/10.1103/physrevb.95.075143

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