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arXiv · 2410.07910

Active Polymer Behavior in Two Dimensions: A Comparative Analysis of Tangential and Push-Pull Models

Giulia Janzen·Juan Pablo Miranda·José Martín-Roca·Paolo Malgaretti·Emanuele Locatelli·Chantal Valeriani·D. A. Matoz Fernandez
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Abstract

In this work, we compare the structural and dynamic behavior of active filaments in two dimensions using tangential and push-pull models, including a variant with passive end monomers. These models serve as valuable frameworks for understanding self-organization in biological polymers and synthetic materials. At low activity, all models exhibit similar behaviors. Differences emerge in the intermediate range as activity increases, though at higher activity levels, their behaviors converge. Importantly, adjusting for differences in mean active force reveals nearly identical behavior across models. Our results highlight the importance of force definitions in active polymer simulations and provide insights into phase transitions across varying filament configurations.

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Giulia Janzen, Juan Pablo Miranda, José Martín-Roca, Paolo Malgaretti, Emanuele Locatelli, Chantal Valeriani, D. A. Matoz Fernandez. 2024-10-10. Active Polymer Behavior in Two Dimensions: A Comparative Analysis of Tangential and Push-Pull Models. https://doi.org/10.1063/5.0243432

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