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cond-mat.stat-mech2026
Emergent Symmetry in Constant-Density Flocks
Hugues Chaté, Alexandre Solon
In two dimensions, the ordered phase of constant-density flocks is described by a single angle field, which makes them arguably the simplest systems with a scale-free ordered phase…
cond-mat.stat-mech2024
Dynamic Scaling of Two-Dimensional Polar Flocks
Hugues Chaté, Alexandre Solon
We propose a hydrodynamic description of the homogeneous ordered phase of polar flocks. Starting from symmetry principles, we construct the appropriate equation for the dynamics of…
cond-mat.stat-mech2023★ 4 cited
Biased motility-induced phase separation: from chemotaxis to traffic jams
Eric Bertin, Alexandre Solon
We propose a one-dimensional model of active particles interpolating between quorum sensing models used in the study of motility-induced phase separation (MIPS) and models of conge…