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Curvature-induced defect unbinding in active nematic tori
Kolloquium / Kongress / Forum
Breite Öffentlichkeit
12.12.2018 17:15 - 13.12.2018 18:15
Präsenzveranstaltung
We will discuss our recent results with active nematic liquid crystals on toroidal surfaces and show how, despite the intrinsic activity and out-of-equilibrium character of our system, we still observe remnants of the expected curvature-induced defect unbinding predicted for nematics in their ground state. In our experiments, however, the number of defects is far larger than what one would expect for conventional nematics. In addition, these defects move throughout the toroidal surface and arrange in unexpected ways when compared to conventional nematics. Comparing our results to numerical simulations, we unravel the key role of activity in these findings via defect creation and annihilation events.
Wann?
12.12.2018 17:15 - 13.12.2018 18:15
Wo?
Organisation
Vortragende / Mitwirkende
Prof. Alberto Fernandez-Nieves
School of Physics, Georgia Tech (USA)
Department of Condensed Matter Physics, University of Barcelona
ICREA - Institució Catalana de Recerca i Estudis Avançats, Barcelona
School of Physics, Georgia Tech (USA)
Department of Condensed Matter Physics, University of Barcelona
ICREA - Institució Catalana de Recerca i Estudis Avançats, Barcelona