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Diversity of phase transitions and phase separations in active fluids

Authors
  • Bertrand, T
  • Lee, CF
Publication Date
May 10, 2022
Source
Spiral - Imperial College Digital Repository
Keywords
License
Green
External links

Abstract

Active matter is not only indispensable to our understanding of diverse biological processes, but also provides a fertile ground for discovering novel physics. Many emergent properties impossible for equilibrium systems have been demonstrated in active systems. These emergent features include motility-induced phase separation, a long-ranged ordered (collective motion) phase in two dimensions, and order-disorder phase coexistences (banding and reverse-banding regimes). Here, we unify these diverse phase transitions and phase coexistences into a single formulation based on generic hydrodynamic equations for active fluids. We also reveal a novel comoving coexistence phase and a multicritical point.

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