538 citations · 4.8k across the 126 of their papers we have counts for
23 papers · 1 filter
Activity leads to topological phase transition in 2D populations of heterogeneous oscillators
Ylann Rouzaire, Parisa Rahmani, Ignacio Pagonabarraga +2
Populations of heterogeneous, noisy oscillators on a two-dimensional lattice display short-range order. Here, we show that if the oscillators are allowed to actively move in space,…
Non-Reciprocal Interactions Reshape Topological Defect Annihilation
Ylann Rouzaire, Daniel JG Pearce, Ignacio Pagonabarraga +1
We show how non-reciprocal ferromagnetic interactions between neighbouring planar spins in two dimensions, affect the behaviour of topological defects. Non-reciprocity is introduce…
Noise-Induced Phase Separation and Time Reversal Symmetry Breaking in Active Field Theories driven by persistent noise
Matteo Paoluzzi, Demian Levis, Andrea Crisanti +1
Within the Landau-Ginzburg picture of phase transitions, scalar field theories develop phase separation because of a spontaneous symmetry-breaking mechanism. This picture works in…
Unified analysis of Topological Defects in 2D systems of Active and Passive disks
Pasquale Digregorio, Demian Levis, Leticia F. Cugliandolo +2
We provide a comprehensive quantitative analysis of localized and extended topological defects in the steady state of 2D passive and active repulsive Brownian disk systems. We show…
Fluctuation-Dissipation Relations in the absence of Detailed Balance: formalism and applications to Active Matter
Sara Dal Cengio, Demian Levis, Ignacio Pagonabarraga
We present a comprehensive study about the relationship between the way Detailed Balance is broken in non-equilibrium systems and the resulting violations of the Fluctuation-Dissip…
Linear response theory and Green-Kubo relations for active matter
Sara Dal Cengio, Demian Levis, Ignacio Pagonabarraga
We address the question of how interacting active systems in a non-equilibrium steady-state respond to an external perturbation. We establish an extended fluctuation-dissipation th…