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Hierarchical defect-induced condensation in active nematics
Timo Krüger, Ivan Maryshev, Erwin Frey
Topological defects play a central role in the formation and organization of various biological systems. Historically, such nonequilibrium defects have been mainly studied in the c…
Microphase separation in active filament systems is maintained by cyclic dynamics of cluster size and order
Lorenz Huber, Timo Krüger, Erwin Frey
The onset of polar flocking in active matter is discontinuous, akin to gas-liquid phase transitions, except that the steady state exhibits microphase separation into polar clusters…
Pattern-induced local symmetry breaking in active matter systems
Jonas Denk, Erwin Frey
The emergence of macroscopic order and patterns is a central paradigm in systems of (self-)propelled agents, and a key component in the structuring of many biological systems.The r…
Active Matter Invasion
Felix Kempf, Romain Mueller, Erwin Frey +2
Biological active materials such as bacterial biofilms and eukaryotic cells thrive in confined micro-spaces. Here, we show through numerical simulations that confinement can serve…
Disentangling Entanglements in Biopolymer Solutions
Philipp Lang, Erwin Frey
Reptation theory has been highly successful in explaining the unusual material properties of entangled polymer solutions. It reduces the complex many-body dynamics to a single-poly…
Active Curved Polymers form Vortex Patterns on Membranes
Jonas Denk, Lorenz Huber, Emanuel Reithmann +1
Recent in vitro experiments with FtsZ polymers show self-organization into different dynamic patterns, including structures reminiscent of the bacterial Z-ring. We model FtsZ polym…