Interaction quench in a Lieb–Liniger model and the KPZ equation with flat initial conditions
Interaction quench in a Lieb–Liniger model and the KPZ equation with flat initial conditions
Recent exact solutions of the 1D Kardar-Parisi-Zhang equation make use of the 1D integrable Lieb-Liniger model of interacting bosons. For flat initial conditions, it requires the knowledge of the overlap between the uniform state and arbitrary exact Bethe eigenstates. The same quantity is also central in the study of the …