Results 61 to 70 of about 3,171,566 (182)
Phase separation and large deviations of lattice active matter
, 2017 Off-lattice active Brownian particles form clusters and undergo phase separation even in the absence of attractions or velocity-alignment mechanisms. Arguments that explain this phenomenon appeal only to the ability of particles to move persistently in a
Klymko, Katherine +2 more
core +2 more sources
Learning Optimal Crowd Evacuation from Scratch Through Self‐Play
Advanced Intelligent SystemsA key goal in evacuation management is to quickly and safely remove panicking crowds from buildings, festivals, or airplanes while preventing crush fatalities.
Mahdi Nasiri +3 more
doaj +1 more source
New Journal of Physics, 2019 This paper studies the influence of orienting external fields on pattern formation, particularly mesoscale turbulence, in microswimmer suspensions. To this end, we apply a hydrodynamic theory that can be derived from a microscopic microswimmer model ...
Henning Reinken +3 more
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Defect interactions in the non-reciprocal Cahn–Hilliard model
New Journal of PhysicsWe present a computational study of the pairwise interactions between defects in the recently introduced non-reciprocal Cahn–Hilliard model. The evolution of a defect pair exhibits dependence upon their corresponding topological charges, initial ...
Navdeep Rana, Ramin Golestanian
doaj +1 more source
Incompressible polar active fluids in the moving phase in dimensions d > 2
New Journal of Physics, 2018 We study universal behavior in the moving (polar ordered) phase of a generic system of motile particles with alignment interactions in the incompressible limit for spatial dimensions d > 2. Using a dynamical renormalization group analysis, we obtain the
Leiming Chen, Chiu Fan Lee, John Toner
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, 2023 29 pages, 14 figures, to be published in "Active Matter" (Editors: Giovanni Volpe, Nuno Ara\'ujo, Giorgio Volpe and Agnese Callegari)
openaire +3 more sources
Active dynamics of tissue shear flow
New Journal of Physics, 2017 We present a hydrodynamic theory to describe shear flows in developing epithelial tissues. We introduce hydrodynamic fields corresponding to state properties of constituent cells as well as a contribution to overall tissue shear flow due to ...
Marko Popović +6 more
doaj +1 more source
Mechanical pressure and momentum conservation in dry active matter
, 2017 We relate the breakdown of equations of states for the mechanical pressure of generic dry active systems to the lack of momentum conservation in such systems. We show how sources and sinks of momentum arise generically close to confining walls.
Fily, Yaouen +4 more
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Confined active Brownian particles: theoretical description of propulsion-induced accumulation
New Journal of Physics, 2018 The stationary-state distribution function of confined active Brownian particles (ABPs) is analyzed by computer simulations and analytical calculations. We consider a radial harmonic as well as an anharmonic confinement potential. In the simulations, the
Shibananda Das +2 more
doaj +1 more source
Hydrodynamics of an odd active surfer in a chiral fluid
New Journal of Physics, 2023 We theoretically and computationally study the low-Reynolds-number hydrodynamics of a linear active microswimmer surfing on a compressible thin fluid layer characterized by an odd viscosity.
Yuto Hosaka +2 more
doaj +1 more source