6 papers
Modeling density variations in two-dimensional microtubule-based active nematics
Kevin A. Mitchell, Sean Ricarte, Md Mainul Hasan Sabbir +2
A dense two-dimensional layer of aligned microtubules (MTs), powered by molecular motors, is a canonical laboratory model of active materials and a synthetic analog of biological s…
Measures of Chaotic Advection in Simulations of Active Nematics
Md Mainul Hasan Sabbir, Brandon Klein, Daniel A. Beller +1
Active nematics are non-equilibrium fluids composed of rod-like self-propelled units that collectively generate large-scale coherent flows. Here, we focus on a canonical experiment…
Modeling active nematics via the nematic locking principle
Kevin A. Mitchell, Md Mainul Hasan Sabbir, Sean Ricarte +2
Active nematic systems consist of rod-like internally driven subunits that interact with one another to form large-scale coherent flows. They are important examples of far-from-equ…
Chaos-generating periodic orbits of topological defects in confined active nematics
Brandon Klein, Alejandro J. Soto Franco, Md Mainul Hasan Sabbir +5
Active nematics in two dimensions stir themselves efficiently through internally generated chaotic flows, largely driven by motile disclinations. We investigate how this ten…
Controlling chaos: Periodic defect braiding in active nematics confined to a cardioid
Fereshteh L. Memarian, Derek Hammar, Md Mainul Hasan Sabbir +3
This work examines self-mixing in active nematics, a class of fluids in which mobile topological defects drive chaotic flows in a system comprised of biological filaments and molec…
Maximally mixing active nematics
Kevin A. Mitchell, Md Mainul Hasan Sabbir, Kevin Geumhan +3
Active nematics are an important new paradigm in soft condensed matter systems. They consist of rod-like components with an internal driving force pushing them out of equilibrium.…