Séminaire général de Physique avec :
Marcel G. Clerc
Departamento de Fisica, Universidad de Chile
Macroscopic systems maintained out of equilibrium through periodic forcings are characterized by the possibility of the emergence of particle-type solutions or localized states. We unveil a novel type of parametrically excited dissipative solitons. It differs from the well-known dissipative solitons with constant phase by an intrinsically dynamical evolving shelltype phase front.
We propose analytical and numerical characterizations, displaying quite a good agreement. In one and two spatial dimensions, the system shows three types of stationary solitons with shell-like structure, which we propose can be observed in several physical systems such as a vertically driven chain of pendula, a forced magnetic wire or plate and optical parametric oscillator