Regensburg 2025 – scientific programme

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DY: Fachverband Dynamik und Statistische Physik

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

DY 23.4: Poster

Wednesday, March 19, 2025, 10:00–12:00, P3

Verification, efficiency analysis and extension of the kinetic Event-Chain Algorithm — •Nico Schaffrath, Tobias Kampmann, and Jan Kierfeld — TU Dortmund, Dortmund, Germany

The novel cluster kinetic Monte-Carlo algorithm, which is based on the event-chain Monte-Carlo method, is specifically designed to simulate systems of two-dimensional self-propelled hard particles. We verify this algorithm from scratch by analysing various single-, two- and many-body systems, as well as some algorithm-specific quantities. To gain insight about the applicability of the algorithm, we compare its performance to that of an Event-Driven Brownian-Dynamics simulation. Finally, we investigate the possibility to simulate particles with soft interaction energies as well as an extension to three-dimensional systems. Regarding the latter, the phase diagram of self-propelled hard spheres is calculated.

Keywords: Event-Chain Monte-Carlo; Kinetic Monte-Carlo; Self-propelled particles