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- Guillaume Grégoire, Hugues Chaté
- Physical review letters
- 2004

We study the onset of collective motion, with and without cohesion, of groups of noisy self-propelled particles interacting locally. We find that this phase transition, in two space dimensions, is… (More)

A microscopic, stochastic, minimal model for collective and cohesive motion of identical self-propelled particles is introduced. Even though the particles interact strictly locally in a very noisy… (More)

Considering a gas of self-propelled particles with binary interactions, we derive the hydrodynamic equations governing the density and velocity fields from the microscopic dynamics, in the framework… (More)

- Eric Bertin, Michel Droz, Guillaume Grégoire
- Physical review. E, Statistical, nonlinear, and…
- 2006

We study analytically the emergence of spontaneous collective motion within large bidimensional groups of self-propelled particles with noisy local interactions, a schematic model for assemblies of… (More)

- Hugues Chaté, Francesco Ginelli, Guillaume Grégoire, Franck Raynaud
- Physical review. E, Statistical, nonlinear, and…
- 2008

We present a comprehensive study of Vicsek-style self-propelled particle models in two and three space dimensions. The onset of collective motion in such stochastic models with only local alignment… (More)

- Arnaud Prigent, Guillaume Grégoire, Hugues Chaté, Olivier Dauchot, Wim van Saarloos
- Physical review letters
- 2002

We show that turbulent "spirals" and "spots" observed in Taylor-Couette and plane Couette flow correspond to a turbulence-intensity modulated finite-wavelength pattern which in every respect fits the… (More)

- Andrea Perna, Guillaume Grégoire, Richard P. Mann
- Movement ecology
- 2014

Recent research in animal behaviour has contributed to determine how alignment, turning responses, and changes of speed mediate flocking and schooling interactions in different animal species. Here,… (More)

Background: Recent research in animal behaviour has contributed to determine how alignment, turning responses, and changes of speed mediate flocking and schooling interactions in different animal… (More)

- Mathieu Génois, Pascal Hersen, Eric Bertin, Sylvain Courrech du Pont, Guillaume Grégoire
- Physical review. E
- 2016

The exploration of the phase diagram of a minimal model for barchan fields leads to the description of three distinct phases for the system: stationary, percolable, and unstable. In the stationary… (More)

- Mathieu Génois, Pascal Hersen, Sylvain Courrech, Guillaume Grégoire
- 2013

In order to test parameters of the peculiar dynamics occurring in barchan fields, and compute statistical analysis over large numbers of dunes, we build and study an agent-based model, which includes… (More)