Dynamic order-disorder transitions in a system of self-propelled particles

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• Dr Vladimir Lobaskin (University College Dublin)
• Friday 13 April 2012, 12:00-13:00
• Unilever Lecture Theatre, Department of Chemistry.

If you have a question about this talk, please contact Dr Mark Miller.

We study dynamic self-organisation and order-disorder transitions in a two-dimensional system of self-propelled particles with aligning interactions. Our model is a variation of the Viscek model, where aligning interactions arise from group collisions and the particles repel each other at short distances. We use computer simulations to measure the orientational order parameter for particle velocities as a function of intensity of internal noise and particle density and construct a dynamical phase diagram for the system. We discuss the analogy between the dynamical ordering and order-disorder transitions in magnetics.

This talk is part of the Extra Theoretical Chemistry Seminars series.

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