788 citations · 1.1k across the 6 of their papers we have counts for
6 papers
Out of equilibrium stationary states, percolation, and sub-critical instabilities in a fully non conservative system
Mathieu Génois, Pascal Hersen, Eric Bertin +2
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…
When dunes move together, structure of deserts emerges
Mathieu Génois, Pascal Hersen, Sylvain Courrech du Pont +1
Crescent shaped barchan dunes are highly mobile dunes that are usually presented as a prototypical model of sand dunes. Although they have been theoretically shown to be unstable w…
Genetic drift at expanding frontiers promotes gene segregation
Oskar Hallatschek, Pascal Hersen, Sharad Ramanathan +1
Competition between random genetic drift and natural selection plays a central role in evolution: Whereas non-beneficial mutations often prevail in small populations by chance, mut…
Polygons on a Rotating Fluid Surface
Thomas R. N. Jansson, Martin P. Haspang, Kaare H. Jensen +2
We report a novel and spectacular instability of a fluid surface in a rotating system. In a flow driven by rotating the bottom plate of a partially filled, stationary cylindrical c…
The song of the dunes as a self-synchronized instrument
S. Douady, A. Manning, P. Hersen +4
Since Marco Polo (1) it has been known that some sand dunes have the peculiar ability of emitting a loud sound with a well defined frequency, sometimes for several minutes. The ori…
On the crescentic shape of barchan dune
P. Hersen
Aeolian sand dunes originate from wind flow and sand bed interactions. According to wind properties and sand availability, they can adopt different shapes, ranging from huge motion…