The Coil-Globule transition in self-avoiding active polymers

Abstract

We perform numerical simulations of an active fully flexible self-avoiding polymer as a function of the quality of the embedding solvent described in terms of an effective monomer-monomer interaction. Specifically, by extracting the Flory exponent of the active polymer under different conditions, we are able to pin down the location of the coil-globule transition for different strength of the active forces. Remarkably, we find that a simple rescaling of the temperature is capable of qualitatively capture the dependence of the $\Theta$-point of the polymer with the amplitude of the active fluctuations. We discuss the limits of this mapping, and suggest that a negative active pressure between the monomers, not unlike the one that has already been found in suspensions of active hard spheres, may also be present in active polymers.

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Cited by in corpus (8)

• Tangentially Driven Active Polar Linear Polymers -- An Analytical Study
• Effective forces between active polymers
• Simulating active agents under confinement with Dissipative Particles (hydro)Dynamics
• Characteristic features of self-avoiding active Brownian polymers under linear shear flow
• Folding-unfolding transition of active polymer on the reconfiguration of bidirectional tangential active force
• Spontaneous crumpling of active spherical shells
• Activity-enhanced shear thinning of flexible linear polar polymers
• Spiral folding of a flexible chain of chiral active particles