5 papers
Confinement and false vacuum decay on the Potts quantum spin chain
Octavio Pomponio, Anna Krasznai, Gábor Takács
We consider non-equilibrium dynamics after quantum quenches in the mixed-field three-state Potts quantum chain in the ferromagnetic regime. Compared to the analogous setting for th…
Relaxation dynamics in the (double) sine-Gordon model: An open-system viewpoint
D. Szász-Schagrin, D. X. Horváth, G. Takács
We study the effects of integrability breaking on the relaxation dynamics of the (double) sine-Gordon model. Compared to previous studies, we apply an alternative viewpoint motivat…
Anomalous charge transport in the sine-Gordon model
Frederik Møller, Botond C. Nagy, Márton Kormos +1
We conduct a comprehensive study of anomalous charge transport in the quantum sine--Gordon model. Employing the framework of Generalized Hydrodynamics, we compute Drude weights and…
Sine-Gordon model at finite temperature: the method of random surfaces
M. Tóth, J. H. Pixley, D. Szász-Schagrin +2
We study the sine-Gordon quantum field theory at finite temperature by generalizing the method of random surfaces to compute the free energy and one-point functions of exponential…
Dynamical separation of charge and energy transport in one-dimensional Mott insulators
Frederik Møller, Botond C. Nagy, Márton Kormos +1
One-dimensional Mott insulators can be described using the sine-Gordon model, an integrable quantum field theory that provides the low-energy effective description of several one-d…