Spectral description of the dynamics of ultracold interacting bosons in disordered lattices
Spectral description of the dynamics of ultracold interacting bosons in disordered lattices
We study the dynamics of a nonlinear one-dimensional disordered system from a spectral point of view. The spectral entropy and the Lyapunov exponent are extracted from the short-time dynamics, and are shown to give a pertinent characterization of the different dynamical regimes. The chaotic and self-trapped regimes are governed by …