Boundaries, inclusions and disorder in active matter

Summary

I.   Pressure in equilibrium and active matter:  Pressure dependence on boundary properties 

 II.  Boundary asymmetry and curvature:  Ratchet forces and line tension

III.   Inclusions:  The long reach of inclusions in disturbing active fluids

V.    Phase separation: Destruction of bulk phase separation by disorder

VI.   Boundary disorder: Boundary disorder disrupts bulk order    

Acknowledgments

Alex Solon           Yariv Kafri         Julien Tailleur

J. Stenhammar, R. Wittkowski, N. Nikola, R. Voituriez, Y. Fily, A. Baskaran, M.E. Cates

Ydan Ben Dor      Sunghan Ro

Omer Granek

University of Minnesota                      Physics Colloquium                      May 8, 2025

Next (Outline) Outline Pressure Boundary shape Inclusions Disorder Phase separation Boundary disorder Summary