233 citations · 803 across the 16 of their papers we have counts for
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Transmission thresholds in time-periodically driven nonlinear disordered systems
Magnus Johansson, Georgios Kopidakis, Stefano Lepri +1
We study energy propagation in locally time-periodically driven disordered nonlinear chains. For frequencies inside the band of linear Anderson modes, three different regimes are o…
Standing wave instabilities in a chain of nonlinear coupled oscillators
Anna Maria Morgante, Magnus Johansson, Georgios Kopidakis +1
We consider existence and stability properties of nonlinear spatially periodic or quasiperiodic standing waves (SWs) in one-dimensional lattices of coupled anharmonic oscillators.…
Growth and decay of discrete nonlinear Schroedinger breathers interacting with internal modes or standing-wave phonons
Magnus Johansson, Serge Aubry
We investigate the long-time evolution of weakly perturbed single-site breathers (localized stationary states) in the discrete nonlinear Schroedinger (DNLS) equation. The perturbat…