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Dresden 2017 – wissenschaftliches Programm

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DY: Fachverband Dynamik und Statistische Physik

DY 45: Microswimmers (joint session BP/DY)

DY 45.3: Vortrag

Donnerstag, 23. März 2017, 11:45–12:00, ZEU 250

A microscopic field theoretical approach for active systems — •Francesco Alaimo1, 2, Simon Praetorius1, and Axel Voigt1, 2, 31Institut für Wissenschaftliches Rechnen, TU Dresden, Dresden, Germany — 2Dresden Center for Computational Materials Science (DCMS), TU Dresden, Dresden, Germany — 3Center for Systems Biology Dresden (CSBD), Dresden, Germany

We consider a microscopic modeling approach for active systems. The approach extends the phase field crystal (PFC) model and allows us to describe generic properties of active systems within a continuum model. The approach is validated by reproducing results obtained with corresponding agent-based and microscopic phase field models. We consider binary collisions, collective motion and vortex formation. For larger numbers of particles we analyze the coarsening process in active crystals and identify giant number fluctuation in a cluster formation process.

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