Topological defects in active Brownian ellipsoids (C05#)

• Subject Area: Statistical Physics, Nonlinear Dynamics, Complex Systems, Soft and Fluid Matter, Biological Physics
• Term: since 2025
• Project identifier: Deutsche Forschungsgemeinschaft (DFG) - Project number 465145163

Topological defects are essential for understanding and controlling the collective dynamics of active many-particle systems. Using algebraic topology, we predict the existence of novel types of topological defects in systems of active ellipsoids that are propelled orthogonal to their symmetry axis. In this project, we will study the phase diagram, defect dynamics, and entropy production of such particles using Brownian dynamics simulations to understand their collective dynamics and novel topological properties. The results can be applied for realizing novel microscopic cargo manipulation techniques.

• DFG Programme: Collaborative Research Centres
• Subproject of: SFB 1552: Defects and Defect Engineering in Soft Matter
• Applicant Institution: Johannes Gutenberg-Universität Mainz
• Project Head: Dr. Michael te Vrugt