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Showing 2019 · cond-mat.stat-mechShow all
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cond-mat.stat-mech2019★ 37 cited
Dynamical topological quantum phase transitions in nonintegrable models
I. Hagymási, C. Hubig, Ö. Legeza +1
We consider sudden quenches across quantum phase transitions in the XXZ model starting from the Haldane phase. We demonstrate that dynamical phase transitions may occur durin…
cond-mat.stat-mech2019★ 7 cited
Spin fluctuations after quantum quenches in the S=1 Haldane chain: numerical validation of the semi-semiclassical theory
Miklós Antal Werner, Cătălin Paşcu Moca, Örs Legeza +2
We study quantum quenches in the Heisenberg spin chain and show that the dynamics can be described by the recently developed semi-semiclassical method based on particles prop…