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Phase separation in a fluidized granular system is studied. We consider a one-dimensional hydrodynamic model that mimics a two-dimensional fluidized granular system with a vibrating wall and without gravity, which exhibits a phase separation. Close to the critical point, by means of an adiabatic elimination of the temperature, we deduce the van der Waals… (More)

- Carlos Cartes, Orazio Descalzi, Helmut R Brand
- Physical review. E, Statistical, nonlinear, and…
- 2012

We study the influence of noise on the spatially localized, temporally regular states (stationary, one frequency, two frequencies) in the regime of anomalous dispersion for the cubic-quintic complex Ginzburg-Landau equation as a function of the bifurcation parameter. We find that noise of a fairly small strength η is sufficient to reach a chaotic state with… (More)

- Carlos Cartes, Jaime Cisternas, Orazio Descalzi, Helmut R Brand
- Physical review letters
- 2012

We investigate a two-dimensional extended system showing chaotic and localized structures. We demonstrate the robust and stable existence of two types of exploding dissipative solitons. We show that the center of mass of asymmetric dissipative solitons undergoes a random walk despite the deterministic character of the underlying model. Since dissipative… (More)

- Orazio Descalzi, Carlos Cartes, Helmut R Brand
- Physical review. E, Statistical, nonlinear, and…
- 2015

We investigate the influence of large noise on the formation of localized patterns in the framework of the cubic-quintic complex Ginzburg-Landau equation. The interaction of localization and noise can lead to filling in or noisy localized structures for fixed noise strength. To focus on the interaction between noise and localization we cover a region in… (More)

- Giorgio Krstulovic, Carlos Cartes, Marc Brachet, Enrique Tirapegui
- I. J. Bifurcation and Chaos
- 2009

A short review is given of recent papers on the relaxation to (incompressible) absolute equilibrium. A new algorithm to construct absolute equilibrium of spectrally truncated compressible flows is described. The algorithm uses stochastic processes based on the Clebsch representation of the velocity field to generate density and velocity fields that follow… (More)

- Orazio Descalzi, Carlos Cartes, Helmut R Brand
- Chaos
- 2017

We investigate the influence of noise on deterministically stable holes in the cubic-quintic complex Ginzburg-Landau equation. Inspired by experimental possibilities, we specifically study two types of noise: additive noise delta-correlated in space and spatially homogeneous multiplicative noise on the formation of π-holes and 2π-holes. Our results include… (More)

- Orazio Descalzi, Carlos Cartes, Helmut R Brand
- Physical review. E
- 2016

We investigate the influence of spatially homogeneous multiplicative noise on the formation of localized patterns in the framework of the cubic-quintic complex Ginzburg-Landau equation. We find that for sufficiently large multiplicative noise the formation of stationary and temporally periodic dissipative solitons is suppressed. This result is characterized… (More)

- Carlos Cartes, Orazio Descalzi
- Philosophical transactions. Series A…
- 2015

We show the existence of periodic exploding dissipative solitons. These non-chaotic explosions appear when higher-order nonlinear and dispersive effects are added to the complex cubic-quintic Ginzburg-Landau equation modelling soliton transmission lines. This counterintuitive phenomenon is the result of period-halving bifurcations leading to order (periodic… (More)

- Orazio Descalzi, Carlos Cartes, Jaime Cisternas, Helmut R Brand
- Physical review. E, Statistical, nonlinear, and…
- 2011

We investigate the route to exploding dissipative solitons in the complex cubic-quintic Ginzburg-Landau equation, as the bifurcation parameter, the distance from linear onset, is increased. We find for a large class of initial conditions the sequence: stationary localized solutions, oscillatory localized solutions with one frequency, oscillatory localized… (More)

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