36 citations · 65 across the 5 of their papers we have counts for
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…
The Staircase Model: Massless Flows and Hydrodynamics
Michele Mazzoni, Octavio Pomponio, Olalla A. Castro-Alvaredo +1
The staircase model is a simple generalization of the sinh-Gordon model, obtained by complexifying the coupling constant. This produces a new theory with many interesting features.…
Bloch oscillations and the lack of the decay of the false vacuum in a one-dimensional quantum spin chain
O. Pomponio, M. A. Werner, G. Zarand +1
We consider the decay of the false vacuum, realised within a quantum quench into an anti-confining regime of the Ising spin chain with a magnetic field opposite to the initial magn…
Relaxation and entropy generation after quenching quantum spin chains
M. Lencses, O. Pomponio, G. Takacs
This work considers entropy generation and relaxation in quantum quenches in the Ising and -state Potts spin chains. In the absence of explicit symmetry breaking we find univers…
Quasi-particle spectrum and entanglement generation after a quench in the quantum Potts spin chain
O Pomponio, L. Pristyak, G. Takacs
Recently, a non-trivial relation between the quasi-particle spectrum and entanglement entropy production was discovered in non-integrable quenches in the paramagnetic Ising quantum…