Solution for an interaction quench in the Lieb-Liniger Bose gas
Solution for an interaction quench in the Lieb-Liniger Bose gas
We study a quench protocol where the ground state of a free many-particle bosonic theory in one dimension is let unitarily evolve in time under the integrable Lieb-Liniger Hamiltonian of $\delta$-interacting repulsive bosons. By using a recently-proposed variational method, we here obtain the exact non-thermal steady-state of the system in …