Quantum quench in long-range field theories

Understand

We study equilibration properties of observables in long-range field theories after the mass quench in $d=1,2$ and $3$ dimensions.

• We classify the regimes where we expect equilibration or its absence in different dimensions.
• In addition we study the effect of the initial state in the equilibration properties of our system.
• In the case of free field theories we show that whenever we have equilibration the long-time limit of correlations can be described by the Generalized Gibbs Ensemble.