Active Brownian Particles and Chemotaxis
- đ¤ Speaker: Oscar de Wit (University of Cambridge)
- đ Date & Time: Wednesday 22 June 2022, 13:00 - 14:00
- đ Venue: Seminar Room 2, Newton Institute
Abstract
The Keller-Segel model comes from a microscopic model where the chemical gradient acts a drift for a Brownian motion. The macroscopic resulting PDE (the Keller-Segel equation) is known to have some blow up properties, i.e. the model is quite unstable. In this talk we consider a different model where the particles experience a torque from the chemical gradient instead. We discuss some aspects of the mean field limit, hard-sphere interactions, PDE existence, global in time existence, linear (in)stability and nonlinear stability when the chemical is fixed.
Series This talk is part of the Isaac Newton Institute Seminar Series series.
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Oscar de Wit (University of Cambridge)
Wednesday 22 June 2022, 13:00-14:00