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DY: Fachverband Dynamik und Statistische Physik

DY 23: Poster: Active Matter, Soft Matter, Fluids (joint session DY/CPP)

DY 23.3: Poster

Mittwoch, 19. März 2025, 10:00–12:00, P3

Mixed active fluids of two kinds — •Astik Haldar — Universität des Saarlandes, Saarbrücken 66123, Germany

We explore here the polar active fluids of two types, characterizing by their different aligning and propulsion strengths. We example here the fluids as the collections of moving living creatures, which could fuel itself through chemical reactions in their body . We called this system as active system, and consider their brilliant interactions. We here try to model those through considering some parameters and physically observable quantities. We find the parameters region where they have their oriented flocking as parallel or antiparallel, ordered rotating phase coherently meaning chiral phase. Our study finds the transition between the phases as saddle node as well as pitchfork bifurcation in mean field theory scheme. We find different kind of pattern formed states appear through the analytical as well as numerical study.

Keywords: Active Fluid; Nonreciprocal interaction; phase transition