Seminars & Colloquia Calendar
Active Topology
Cristina Marchetti – UC Santa Barbara
Location: Zoom
Date & time: Wednesday, 24 March 2021 at 10:45AM - 11:45AM
Cristina Marchetti – UC Santa Barbara
Wednesday, March 24, 10:45AM
“Active Topology”
Abstract: Topology plays a key role in condensed matter physics, underlying much of our understanding of equilibrium matter in terms of defects in ordered media and topologically protected states. In active systems – collections of entities that consume energy to generate their own motion and forces – topological phenomena can take on new and surprising roles. I will describe some of these behaviors focusing on liquid-crystalline active matter in two dimensions, specifically active nematic liquid crystals, where defects become motile particles, drive spatio-temporally chaotic flows, and can themselves organize in emergent ordered states.
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