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Video from Cristina Marchetti, University of California, Santa Barbara - “Active Topology”

Event Recap

Stanford University

APPLIED PHYSICS/PHYSICS COLLOQUIUM

 

Tuesday, February 16, 2021

4:30 p.m. via Zoom

https://stanford.zoom.us/j/99705123191

Email dmoreau@stanford.edu for password.

 

Cristina Marchetti
University of California, Santa Barbara

 

“Active Topology”

 

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.

February 16, 2021 - 4:30pm