The long-ranged influence of disorder on active systems

Add to your list(s) Download to your calendar using vCal

• Yariv Kafri, Technion-Israel Institute of Technology
• Tuesday 25 October 2022, 13:00-14:00
• Center for Mathematical Sciences, Lecture room MR4 or https://zoom.us/j/98016675669.

If you have a question about this talk, please contact Tal Agranov.

The talk will describe the impact of quenched random potentials on active matter. By developing a methodology for studying these systems both bulk and boundary disorder will be considered. For dilute systems it will be shown that bulk disorder leads to generic long-range correlations, decaying as a power-law, and steady-state currents. Disorder localized along a wall confining the system leads to long-range density modulations and eddies whose amplitude decays as a power law with the distance from the wall, but whose extent grows with it. The talk will also consider dense scalar active systems whose sole hydrodynamic mode is the density. These are known to exhibit a motility induced phase separation in dimensions d \geq 2. It will be shown that bulk potential disorder destroys the transition in dimensions d

Zoom link: https://zoom.us/j/98016675669

This talk is part of the DAMTP Statistical Physics and Soft Matter Seminar series.

This talk is included in these lists:

• All CMS events
• Center for Mathematical Sciences, Lecture room MR4 or https://zoom.us/j/98016675669
• DAMTP Statistical Physics and Soft Matter Seminar
• Soft Matter
• bld31

Note that ex-directory lists are not shown.