Design rules for controlling active defects

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• Suraj Shankar (University of Michigan)
• Tuesday 28 May 2024, 13:00-14:00
• Center for Mathematical Sciences, Lecture room MR4.

If you have a question about this talk, please contact Sarah Loos.

Topological defects dictate the properties of many materials, from metal plasticity and magnetic frustration to the resistivity of superconductors. In active fluids, defects can spontaneously propel and drive chaotic flows stirring the fluid. But how can we locally control the dynamics of such defects? I will discuss an additive framework to design elementary activity patterns, as active topological tweezers, to create, move and braid individual defects. A hydrodynamic extension of the framework enables us to control defect organization, patterning and transport at the collective level. I will conclude by highlighting consequences for the design of programmable active and living metafluids.

This talk is part of the DAMTP Statistical Physics and Soft Matter Seminar series.

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• All CMS events
• Center for Mathematical Sciences, Lecture room MR4
• DAMTP Statistical Physics and Soft Matter Seminar
• Soft Matter
• bld31

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