11 papers
Zoology of collective patterns modulated by non-reciprocal, long-range interactions
Edgardo Brigatti, Fernando Peruani
We investigate active particles that exhibit long-range interactions only restricted by a field of view, which is characterized by an angle . We show that constraining attracti…
Minority-Triggered Reorientations Yield Macroscopic Cascades and Enhanced Responsiveness in Swarms
Simon Syga, Chandraniva Guha Ray, Josué Manik Nava-Sedeño +2
Collective motion in animals and cells often exhibits rapid reorientations and scale-free velocity correlations. This allows information to spread rapidly through the group, allowi…
Collective behavior based on agent-environment interactions
Gaston Briozzo, Gustavo J. Sibona, Fernando Peruani
We present a model of active particles interacting through a dynamic, heterogeneous environment, leading to emergent collective behaviors without direct agent-to-agent communicatio…
Spreading processes on heterogeneous active systems: spreading threshold, immunization strategies, and vaccination noise
BenjamÃn Marcolongo, Gustavo J. Sibona, Fernando Peruani
We study spreading processes in two-dimensional systems of heterogeneous active agents that exhibit different individual active speeds. We obtain, combining kinetic and complex net…
Resource and population dynamics in an agent-environment interaction model
G. Briozzo, G. J. Sibona, F. Peruani
In any ecosystem, the conditions of the environment and the characteristics of the species that inhabit it are entangled, co-evolving in space and time. We introduce a model that c…
Active stop and go motion: a strategy to improve spatial exploration and survival
Fernando Peruani, Debasish Chaudhuri
We consider active Brownian particles that intermittently switch between active and inactive states. Such behavior is ubiquitous at all scales, from bacteria to animals and in arti…