Effective forces between active polymers
arXiv:2203.00744 · doi:10.1103/PhysRevE.105.034503
Abstract
The characterization of the interactions between two fully flexible self-avoiding polymers is one of the classic and most important problems in polymer physics. In this paper we measure these interactions in the presence of active fluctuations. We introduce activity into the problem using two of the most popular models in this field. One where activity is effectively embedded into the monomers' dynamics, and the other where passive polymers fluctuate in an explicit bath of active particles. We establish the conditions under which the interaction between active polymers can be mapped into the classical passive problem. We observe that the active bath can drive the development of strong attractive interactions between the polymers and that, upon enforcing a significant degree of overlap, they come together to form a single double-stranded unit. A phase diagram tracing this change in conformational behavior is also reported.
arXiv comment6 pages, 6 figures
References in corpus (28)
- Active Particles in Complex and Crowded Environments
- The Mechanics and Statistics of Active Matter
- Motility-Induced Phase Separation
- Active Brownian Particles. From Individual to Collective Stochastic Dynamics
- Emergent behavior in active colloids
- Can Polymer Coils be modeled as "Soft Colloids"?
- Tuned, driven, and active soft matter
- Self-propelled Worm-like Filaments: Spontaneous Spiral Formation, Structure, and Dynamics
- Dynamic density shaping of light driven bacteria
- The physics of active polymers and filaments
- Minimal model of active colloids highlights the role of mechanical interactions in controlling the emergent behavior of active matter
- Globule-like conformation and enhanced diffusion of active polymers
- Active colloidal suspensions: Clustering and phase behavior
- Tunable long range forces mediated by self-propelled colloidal hard spheres
- An active approach to colloidal self-assembly
- Conformational properties of active semiflexible polymers
- How does a flexible chain of active particles swell?
- Unusual swelling of a polymer in a bacterial bath
- Casimir Effect in Active Matter Systems
- Activity induced collapse and re-expansion of rigid polymers
- Anomalous Thermomechanical Properties of a Self-propelled Colloidal Fluid
- Facilitation of polymer looping and giant polymer diffusivity in crowded solutions of active particles
- Non-conservative forces and effective temperatures in active polymers
- Generic long-range interactions between passive bodies in an active fluid
- Chain reconfiguration in active noise
- The Coil-Globule transition in self-avoiding active polymers
- Depletion forces on circular and elliptical obstacles induced by active matter
- Collective dynamics of active filament complexes