3 papers · 1 filter
Non-equilibrium geometric forces steer spiral waves on folded surfaces
Varun Venkatesh, Farzan Vafa, Martin Cramer Pedersen +1
Spiral waves are ubiquitous signatures of non equilibrium dynamics, appearing across chemical, biological, and active systems. Yet, in many living systems these waves unfold on cur…
Beyond Dipolar Activity: Quadrupolar Stress Drives Collapse of Nematic Order on Frictional Substrates
Aleksandra Ardaševa, Ignasi Vélez-Cerón, Martin Cramer Pedersen +3
The field of active nematics has traditionally employed descriptions based on dipolar activity, with interactions that align along a single axis. However, it has been theoretically…
Active particles knead three-dimensional gels into open crumbs
Martin Cramer Pedersen, Sourav Mukherjee, Amin Doostmohammadi +2
Colloidal gels are prime examples of functional materials exhibiting disordered, amorphous, yet meta-stable forms. They maintain stability through short-range attractive forces and…