skip to content
 

Patterns in Polarisable Elastic Active Layers

Presented by: 
L Pismen Technion - Israel Institute of Technology
Date: 
Tuesday 25th August 2015 - 11:00 to 12:00
Venue: 
INI Seminar Room 2
Abstract: 
I explore a class of macroscopic continuous models with feedback interactions inducing spontaneous vector or nematic polarisation and mechanical deformation of elastic active media. Linear stabilityanalysis predicts, depending on the sign of feedback interaction coefficients, either monotonic or oscillatory instability of the homogeneous isotropic state. In the former case, the emerging pattern undergoes a slow coarsening process but permanent polarity may emerge when the system is topologically constrained. Oscillatory instabilities arise in active systems on a finite wavelength, and lead to complex wave patterns. Transition to a deformed polarised state may be frustrated in constrained geometry but leads to boundary undulations in free-boundary settings.
The video for this talk should appear here if JavaScript is enabled.
If it doesn't, something may have gone wrong with our embedded player.
We'll get it fixed as soon as possible.
University of Cambridge Research Councils UK
    Clay Mathematics Institute London Mathematical Society NM Rothschild and Sons