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SUMMARY: Design rules for controlling active defects - Suraj Shankar (Univ
 ersity of Michigan)
DTSTART:20240528T120000Z
DTEND:20240528T130000Z
UID:TALK215335@talks.cam.ac.uk
CONTACT:Sarah Loos
DESCRIPTION:Topological defects dictate the properties of many materials\,
  from metal plasticity and magnetic frustration to the resistivity of supe
 rconductors. In active fluids\, defects can spontaneously propel and drive
  chaotic flows stirring the fluid. But how can we locally control the dyna
 mics of such defects? I will discuss an additive framework to design eleme
 ntary activity patterns\, as active topological tweezers\, to create\, mov
 e and braid individual defects. A hydrodynamic extension of the framework 
 enables us to control defect organization\, patterning and transport at th
 e collective level. I will conclude by highlighting consequences for the d
 esign of programmable active and living metafluids.
LOCATION:Center for Mathematical Sciences\, Lecture room MR4
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