74 citations · 232 across the 6 of their papers we have counts for
6 papers
Compactlike discrete breathers in systems with nonlinear and nonlocal dispersive terms
A. V. Gorbach, S. Flach
Discrete breathers with purely anharmonic short-range interaction potentials localize super-exponentially becoming compact-like. We analyze their spatial localization properties an…
Classical and quantum radiation of perturbed discrete breathers
S. Flach, V. Fleurov, A. V. Gorbach
We show that the linearized phase space flow around a discrete breather solution is not capable of generating persistent energy flow away from the breather even in the case of inst…
Discrete breathers in Fermi-Pasta-Ulam lattices
S. Flach, A. Gorbach
The Fermi-Pasta-Ulam (FPU) paradox was observed fifty years ago. The surprising finding was a localization of energy in the reciprocal q-space of a model with discrete translationa…
Resonant light scattering by optical solitons
S. Flach, V. Fleurov, A. V. Gorbach +1
We consider the process of light scattering by optical solitons in a planar waveguide with homogeneous and inhomogeneous refractive index core. We observe resonant reflection (Fano…
Gap and out-gap breathers in a binary modulated discrete nonlinear Schrödinger model
Andrey V. Gorbach, Magnus Johansson
We consider a modulated discrete nonlinear Schrödinger (DNLS) model with alternating on-site potential, having a linear spectrum with two branches separated by a 'forbidden' gap. N…
Quasiperiodic localized oscillating solutions in the discrete nonlinear Schrödinger equation with alternating on-site potential
Magnus Johansson, Andrey V. Gorbach
We present what we believe to be the first known example of an exact quasiperiodic localized stable solution with spatially symmetric large-amplitude oscillations in a non-integrab…