Quenches from gaussian bosons to Tonks-Girardeau gas: stationary states and effects of a confining potential

Alvise Bastianello, Mario Collura, Spyros Sotiriadis

We consider the general problem of quenching an interacting Bose gas from the noninteracting regime to the strong repulsive case described by the Tonks-Girardeau limit, with the in…