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Berlin 2018 – wissenschaftliches Programm

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BP: Fachverband Biologische Physik

BP 4: Active Matter DY I (joint session DY/CPP/BP)

BP 4.9: Vortrag

Montag, 12. März 2018, 12:15–12:30, BH-N 243

Critical behavior of active Brownian particlesJonathan Tammo Siebert, •Florian Dittrich, Friederike Schmid, Kurt Binder, Thomas Speck, and Peter Virnau — Johannes Gutenberg University Mainz, Department of Physics, 55122 Mainz

We propose an improved block-density distribution method, which allows us to determine accurately the critical point of two dimensional active Brownian particles at Pecr=40(2), φcr=0.597(3). Based on this estimate we study the corresponding critical exponents β, γ/ν, and ν. Our results are incompatible with the 2D-Ising universality class, thus raising the fascinating question whether there exists a non-equilibrium universality class.

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