Year: 2026
Type: preprint
Abstract: Motivated by gaps in our current knowledge of the Vicsek model, we present a major update of its phase diagram in two space dimensions, summarizing comprehensive numerical simulations at length- and timescales never explored before. Our main conclusions are that multiple phase separation scenarios are at play, not just the simple microphase separation put forward in [Phys. Rev. Lett. 114, 068101 (2015)], and that the coexistence phase is subdivided in two. We also map out the region of metastability of the homogeneous Toner-Tu liquid phase.
Source: arXiv (Cornell University)
Institutions: Centre National de la Recherche Scientifique, Commissariat à l'Énergie Atomique et aux Énergies Alternatives, Université Paris-Saclay, CEA Paris-Saclay - Etablissement de Saclay, Sorbonne Université, Service de Physique de l'État Condensé, CEA Paris-Saclay, Laboratoire de Physique Théorique de la Matière Condensée, Université de Montpellier, Max Planck Institute for Dynamics and Self-Organization, Laboratoire Charles Coulomb, Soochow University
Language: English
Subfield: Condensed Matter Physics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: green
Awards: G2649602122, G5128122492, G5818336671
OpenAlex ID: W7223057320