3 papers
cond-mat.soft2026
Flow Coupling Alters Topological Phase Transition in Nematic Liquid Crystals
Jayeeta Chattopadhyay, Simon Guldager Andersen, Kristian Thijssen +1
We investigate how coupling to fluid flow influences defect-mediated transitions in two-dimensional passive nematic fluids using fluctuating nematohydrodynamic simulations. The sys…
cond-mat.soft2026
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…
cond-mat.soft2025
Phase diagram, confining strings, and a new universality class in nematopolar matter
Farzan Vafa, Amin Doostmohammadi
We study a minimal model of a system with coexisting nematic and polar orientational orders, where one field tends to order and the other prefers isotropy. For strong coupling, the…