BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//Talks.cam//talks.cam.ac.uk//
X-WR-CALNAME:Talks.cam
BEGIN:VEVENT
SUMMARY:Defect loops in 3D active nematics - Daniel Beller (University of 
 California\, Merced)
DTSTART:20190114T161500Z
DTEND:20190114T170000Z
UID:TALK116875@talks.cam.ac.uk
CONTACT:INI IT
DESCRIPTION:Co-authors: Guillaume Duclos\, Minu Varghese\, Matthew Peterso
 n\, Arvind Baskaran\, Aparna Baskaran\, Michael Hagan (Martin A. Fisher Sc
 hool of Physics\, Brandeis University&nbsp\;)\, Debarghya Banerjee (Max Pl
 anck Institute for Dynamics and Self-Organization\, G&ouml\;ttingen)\, Fed
 erico Toschi (Department of Applied Physics\, Eindhoven University of Tech
 nology)\, Sebastian Streichan\, Zvonimir Dogic (Department of Physics\, Un
 iversity of California\, Santa Barbara)\, Vincenzo Vitelli (James Franck I
 nstitute and Department of Physics\, University of Chicago)\, Robert Pelco
 vits (Department of Physics\, Brown University)\, Thomas Powers (School of
  Engineering and Department of Physics\, Brown University).&nbsp\;Abstract
 :&nbsp\;In 2D active nematics\, internally driven chaotic flows are charac
 terized by the continual production\, motion\, and annihilation of point d
 efect pairs. We investigate the behavior of active nematics in 3D\, for wh
 ich we have developed an experimental model system of microtubules and mol
 ecular motors\, as well as numerical modeling approaches. The defects char
 acterizing chaotic flow are here curvilinear rather than point-like. We pr
 esent a theoretical model predicting a certain class of closed disclinatio
 n loops to be the system&rsquo\;s generic singularities. Through detailed 
 analysis of experimental and numerically generated configurations\, we sho
 w how our predictions of defect topology\, geometry\, and dynamics provide
  important insights into this highly complex 3D system.
LOCATION:Seminar Room 1\, Newton Institute
END:VEVENT
END:VCALENDAR