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5 papers · 2 filters
Dynamics and Instabilities of Defects in Two-Dimensional Crystals on Curved Backgrounds
Mark Bowick, Homin Shin, Alex Travesset
Point defects are ubiquitous in two dimensional crystals and play a fundamental role in determining their mechanical and thermodynamical properties. When crystals are formed on a c…
Thermal Fluctuations and Rubber Elasticity
Xiangjun Xing, Paul M. Goldbart, Leo Radzihovsky
The effects of thermal elastic fluctuations in rubber materials are examined. It is shown that, due to an interplay with the incompressibility constraint, these fluctuations qualit…
Hydrodynamics of isotropic and liquid crystalline active polymer solutions
Aphrodite Ahmadi, M. Cristina Marchetti, T. B. Liverpool
We describe the large-scale collective behavior of solutions of polar biofilaments and both stationary and mobile crosslinkers. Both mobile and stationary crosslinkers induce filam…
Rheology of Active Filament Solutions
T. B. Liverpool, M. Cristina Marchetti
We study the viscoelasticity of an active solution of polar biofilaments and motor proteins. Using a molecular model, we derive the constitutive equations for the stress tensor in…
Irrational mode locking in quasiperiodic systems
Creighton K. Thomas, A. Alan Middleton
A model for ac-driven systems, based on the Tang-Wiesenfeld-Bak-Coppersmith-Littlewood automaton for an elastic medium, exhibits mode-locked steps with frequencies that are irratio…