Výsledky vyhledávání - "Maissa, Philippe"

Report

Influence of shear-flow vorticity on wave-current interaction. Part 1: Surface gravity waves without surface tension effect

Autor: Maïssa, Philippe, Rousseaux, Germain, Stepanyants, Yury

Propagation of surface waves on a background shear flow with constant vorticity is studied and compared against the case when the background flow is uniform in depth. For a shear flow with the linear vertical profile, the dispersion relation of surfa

Externí odkaz: http://arxiv.org/abs/1310.3811

Zobrazit plný text záznamu

Report

Horizon effects for surface waves in wave channels and circular jumps

Autor: Jannes, Gil, Piquet, Romain, Chaline, Jennifer, Maïssa, Philippe, Mathis, Christian, Rousseaux, Germain

Publikováno v: J.Phys.Conf.Ser.314:012031,2011

Surface waves in classical fluids experience a rich array of black/white hole horizon effects. The dispersion relation depends on the characteristics of the fluid (in our case, water and silicon oil) as well as on the fluid depth and the wavelength r

Externí odkaz: http://arxiv.org/abs/1102.3051

Zobrazit plný text záznamu

Report

Hawking radiation and the boomerang behaviour of massive modes near a horizon

Autor: Jannes, Gil, Maïssa, Philippe, Philbin, Thomas G., Rousseaux, Germain

Publikováno v: Phys.Rev.D83:104028,2011

We discuss the behaviour of massive modes near a horizon based on a study of the dispersion relation and wave packet simulations of the Klein-Gordon equation. We point out an apparent paradox between two (in principle equivalent) pictures of black ho

Externí odkaz: http://arxiv.org/abs/1102.0689

Zobrazit plný text záznamu

Report

The influence of an electromagnetic field on the wave-current interaction

Autor: Rousseaux, Germain, Maïssa, Philippe

We study the propagation of surface waves on a current in the presence of an electromagnetic field. A horizontal (vertical) field strengthens (weakens) the counter-current which blocks the waves. We compute the phase space diagrams (blocking velociti

Externí odkaz: http://arxiv.org/abs/1010.2191

Zobrazit plný text záznamu

Report

Horizon effects with surface waves on moving water

Autor: Rousseaux, Germain, Maissa, Philippe, Mathis, Christian, Coullet, Pierre, Philbin, Thomas G., Leonhardt, Ulf

Publikováno v: New J. Phys. 12 (2010) 095018

Surface waves on a stationary flow of water are considered, in a linear model that includes the surface tension of the fluid. The resulting gravity-capillary waves experience a rich array of horizon effects when propagating against the flow. In some

Externí odkaz: http://arxiv.org/abs/1004.5546

Zobrazit plný text záznamu

Report

Observation of negative-frequency waves in a water tank: A classical analogue to the Hawking effect?

Autor: Rousseaux, Germain, Mathis, Christian, Maissa, Philippe, Philbin, Thomas G., Leonhardt, Ulf

Publikováno v: NewJ.Phys.10:053015,2008

The conversion of positive-frequency waves into negative-frequency waves at the event horizon is the mechanism at the heart of the Hawking radiation of black holes. In black-hole analogues, horizons are formed for waves propagating in a medium agains

Externí odkaz: http://arxiv.org/abs/0711.4767

Zobrazit plný text záznamu