Quench dynamics and relaxation in isolated integrable quantum spin chains

FHL Essler, M Fagotti - Journal of Statistical Mechanics: Theory …, 2016 - iopscience.iop.org
We review the dynamics after quantum quenches in integrable quantum spin chains. We
give a pedagogical introduction to relaxation in isolated quantum systems, and discuss the …

The quench action

JS Caux - Journal of Statistical Mechanics: Theory and …, 2016 - iopscience.iop.org
We give a pedagogical introduction to the methodology of the Quench Action, which is an
effective representation for the calculation of time-dependent expectation values of physical …

Validity of the GGE for quantum quenches from interacting to noninteracting models

S Sotiriadis, P Calabrese - Journal of Statistical Mechanics …, 2014 - iopscience.iop.org
In the majority of analytical verifications of the conjecture that the Generalized Gibbs
Ensemble (GGE) describes the large time asymptotics of local observables in quantum …

Quantum quench in the sine-Gordon model

B Bertini, D Schuricht, FHL Essler - Journal of Statistical …, 2014 - iopscience.iop.org
We consider the time evolution in the repulsive sine-Gordon quantum field theory after the
system is prepared in a particular class of initial states. We focus on the time dependence of …

From the quantum transfer matrix to the quench action: the Loschmidt echo in XXZ Heisenberg spin chains

L Piroli, B Pozsgay, E Vernier - Journal of Statistical Mechanics …, 2017 - iopscience.iop.org
We consider the computation of the Loschmidt echo after quantum quenches in the
interacting XXZ Heisenberg spin chain both for real and imaginary times. We study two-site …

[HTML][HTML] Non-analytic behavior of the Loschmidt echo in XXZ spin chains: Exact results

L Piroli, B Pozsgay, E Vernier - Nuclear Physics B, 2018 - Elsevier
We address the computation of the Loschmidt echo in interacting integrable spin chains after
a quantum quench. We focus on the massless regime of the XXZ spin-1/2 chain and present …

Conformal field theory on top of a breathing one-dimensional gas of hard core bosons

P Ruggiero, Y Brun, J Dubail - SciPost Physics, 2019 - scipost.org
The recent results of [J. Dubail, J.-M. St\'ephan, J. Viti, P. Calabrese, Scipost Phys. 2, 002
(2017)], which aim at providing access to large scale correlation functions of …

The dynamical free energy and the Loschmidt echo for a class of quantum quenches in the Heisenberg spin chain

B Pozsgay - Journal of Statistical Mechanics: Theory and …, 2013 - iopscience.iop.org
We consider a class of global quantum quenches in the Heisenberg XXZ spin chain, where
the initial states are given by products of local two-site states. The two main examples are …

Correlations and diagonal entropy after quantum quenches in XXZ chains

L Piroli, E Vernier, P Calabrese, M Rigol - Physical Review B, 2017 - APS
We study quantum quenches in the XXZ spin-1/2 Heisenberg chain from families of
ferromagnetic and antiferromagnetic initial states. Using Bethe ansatz techniques, we …

Initial states in integrable quantum field theory quenches from an integral equation hierarchy

DX Horváth, S Sotiriadis, G Takács - arxiv preprint arxiv:1510.01735, 2015 - arxiv.org
We consider the problem of determining the initial state of integrable quantum field theory
quenches in terms of the post-quench eigenstates. The corresponding overlaps are a …