Quantum quenches with integrable pre-quench dynamics

Abstract

We consider the unitary time evolution of a one-dimensional quantum system which is in a stationary state for negative times and then undergoes a sudden change (quench) of a parameter of its Hamiltonian at t=0. For systems possessing a continuum limit described by a massive quantum field theory we investigate in general perturbative quenches for the case in which the theory is integrable before the quench.

6 pages, 1 figure

References in corpus (4)

• Quantum Quench in the Transverse Field Ising Chain
• Effective thermal dynamics following a quantum quench in a spin chain
• Dynamics in the Ising field theory after a quantum quench
• On the space of quantum fields in massive two-dimensional theories

Cited by in corpus (4)

• Thermalization and light cones in a model with weak integrability breaking
• Quasiparticle explanation of "weak thermalization" regime under quench in a non-integrable quantum spin chain
• From the Quantum Transfer Matrix to the Quench Action: The Loschmidt echo in $XXZ$ Heisenberg spin chains
• Approximate light cone effects in a non-relativistic quantum field theory after a local quench