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cond-mat.quant-gas2018
Non-equilibrium time evolution and rephasing in the quantum sine-Gordon model
D. X. Horvath, I. Lovas, M. Kormos +2
We discuss the non-equilibrium time evolution of the phase field in the sine-Gordon model using two very different approaches: the truncated Wigner approximation and the truncated…
cond-mat.stat-mech2018
Overlap singularity and time evolution in integrable quantum field theory
D. X. Horváth, M. Kormos, G. Takács
We study homogeneous quenches in integrable quantum field theory where the initial state contains zero-momentum particles. We demonstrate that the two-particle pair amplitude neces…