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Hydrodynamics of Polymers in an Active Bath by Martin-Gomez, Aitor; Eisenstecken, Thomas; Gompper, Gerhard; Winkler, Roland G. is a scholarly article available to read on EtoBox.

What is Hydrodynamics of Polymers in an Active Bath about?

The conformational and dynamical properties of active polymers in solution are determined by the nature of the activity, and the behavior of polymers with self-propelled, active Brownian particle-type monomers differs qualitatively from that of polymers with monomers driven externally by colored noise forces. We present simulation and theoretical results for polymers in solution in the presence of external active noise. In simulations, a semiflexible bead-spring chain is considered, in analytical calculations, a continuous linear wormlike chain. Activity is taken into account by independent monomer/site velocities, with orientations changing in a diffusive manner. In simulations, hydrodynamic interactions (HI) are taken into account by the Rotne-Prager-Yamakawa tensor, or by an implementation of the active polymer in the multiparticle collision dynamics approach for fluids. To arrive at an analytical solution, the preaveraged Oseen tensor is employed. The active process implies a dependence of the stationary-state properties on HI via polymer relaxation times. With increasing activity, HI lead to an enhanced swelling of flexible polymers, and the conformational properties differ su

Author

Martin-Gomez, Aitor; Eisenstecken, Thomas; Gompper, Gerhard; Winkler, Roland G.

Published

2020

Language

EN