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University of Cambridge > Talks.cam > Isaac Newton Institute Seminar Series > On two models for non-instantaneous binary alignment collisions

## On two models for non-instantaneous binary alignment collisionsAdd to your list(s) Download to your calendar using vCal - Christian Schmeiser (Universität Wien)
- Tuesday 26 April 2022, 11:15-12:15
- Seminar Room 1, Newton Institute.
If you have a question about this talk, please contact nobody. FKTW03 - Frontiers in kinetic equations for plasmas and collective behaviour It is a standard assumption in kinetic transport theory that collision processes are instantaneous. We shall report on the initiation of a research program, where this idealization is lifted. The idea for modeling binary, non-instantaneous collisions is to replace instantaneous jumps in the state space of a pair of particles by continuous processes taking finite time. The duration of the collision process can be deterministic or stochastic. This results in a system of equations for the particle distribution between collisions and for the distribution of particle pairs during collision processes. Results will be presented on two spatially homogeneous models for non-instantaneous alignment collisions, where in one case the collision time is governed by a simple Poisson process, whereas in the other case collisions end after reaching complete alignment in finite time. For both models existence, long-time behavior, and the instantaneous limit towards a standard kinetic model will be discussed.(joint work with Laura Kanzler and Veronica Tora) This talk is part of the Isaac Newton Institute Seminar Series series. ## This talk is included in these lists:- All CMS events
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