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6 papers · 2 filters
Critical dynamics of ballistic and Brownian particles in a heterogeneous environment
Felix Höfling, Tobias Munk, Erwin Frey +1
The dynamic properties of a classical tracer particle in a random, disordered medium are investigated close to the localization transition. For Lorentz models obeying Newtonian and…
Force distributions and force chains in random stiff fiber networks
Claus Heussinger, Erwin Frey
We study the elasticity of random stiff fiber networks. The elastic response of the fibers is characterized by a central force stretching stiffness as well as a bending stiffness t…
Coupling of transverse and longitudinal response in stiff polymers
Benedikt Obermayer, Oskar Hallatschek
The time-dependent transverse response of stiff polymers, represented as weakly-bending wormlike chains (WLCs), is well-understood on the linear level, where transverse degrees of…
Quantitative Tube Model for Semiflexible Polymer Solutions
Hauke Hinsch, Jan Wilhem, Erwin Frey
We develop a analytical and quantitative theory of the tube model concept for entangled networks of semiflexible polymers. The absolute value of the tube diameter L_perp is derived…
Nonaffine rubber elasticity for stiff polymer networks
C. Heussinger, B. Schaefer, E. Frey
We present a theory for the elasticity of cross-linked stiff polymer networks. Stiff polymers, unlike their flexible counterparts, are highly anisotropic elastic objects. Similar t…
Crossover in the Slow Decay of Dynamic Correlations in the Lorentz Model
Felix Höfling, Thomas Franosch
The long-time behavior of transport coefficients in a model for spatially heterogeneous media in two and three dimensions is investigated by Molecular Dynamics simulations. The beh…