6 papers · 1 filter
Density-protected states in active matter under virtual confinement
Giuseppe Fava, Francesco Ginelli, Benoît Mahault
We investigate photo-responsive structure formation in a minimal model of dry active nematics. Combining microscopic simulations with the analysis of the corresponding hydrodynamic…
Breakdown of Emergent Chiral Order and Defect Chaos in Nonreciprocal Flocks
Charlotte Myin, Suropriya Saha, Benoît Mahault
We show that chiral order in two-dimensional nonreciprocal flocking mixtures is generically unstable. Combining large-scale agent-based simulations with a coarse-grained continuum…
Nonequilibrium energetics of sensing and actuation by a smart active particle
Luca Cocconi, Benoît Mahault, Lorenzo Piro
Smart active agents must allocate finite energetic resources across distinct functions, yet the underlying thermodynamic trade-offs remain poorly understood. Here, we introduce a m…
Non-reciprocal interactions between condensates in chemically active mixtures
Jacopo Romano, Martin Kjøllesdal Johnsrud, Martin Kjøllesdal Johnsrud +3
We study the behaviour of catalytically active droplets in multi-component conserved mixtures affected by noise. Working in the thin interface limit, we analytically determine the…
Dynamics of Phase-Separated Interfaces in Inhomogenous and Driven Mixtures
Jacopo Romano, Ramin Golestanian, Benoît Mahault
We derive effective equations of motion governing the dynamics of sharp interfaces in phase-separated binary mixtures driven by spatio-temporal modulations of their material proper…
Phase Coexistence in Nonreciprocal Quorum-Sensing Active Matter
Yu Duan, Jaime Agudo-Canalejo, Ramin Golestanian +1
Motility and nonreciprocity are two primary mechanisms for self-organization in active matter. In a recent study [Phys. Rev. Lett. 131, 148301 (2023)], we explored their joint infl…