191 citations · 513 across the 22 of their papers we have counts for
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Semi-classical theory for quantum quenches in the O(3) non-linear sigma model
Stefano Evangelisti
We use the semi-classical approach to study the non-equilibrium dynamics of the O(3) non-linear sigma model. For a class of quenches defined in the text, we obtain the order parame…
Dynamical Correlations after a Quantum Quench
Fabian H. L. Essler, Stefano Evangelisti, Maurizio Fagotti
In many integrable models static (equal time) correlation functions of local observables after a quantum quench relax to stationary values, which are described by a generalized Gib…
Correlation Length and Unusual Corrections to the Entanglement Entropy
Elisa Ercolessi, Stefano Evangelisti, Fabio Franchini +1
We study analytically the corrections to the leading terms in the Renyi entropy of a massive lattice theory, showing significant deviations from naive expectations. In particular,…