Active polymer behavior in two dimensions: A comparative analysis of tangential and push-pull models

Janzen G, Miranda JP, Martín-Roca J, Malgaretti P, Locatelli E, Valeriani C, Fernandez DA (2025)

Publication Type: Journal article

Publication year: 2025

Journal

Journal of Chemical Physics AIP Publishing

Book Volume: 162

Article Number: 114905

Journal Issue: 11

DOI: 10.1063/5.0243432

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, to bridge the two frameworks. These models serve as valuable frameworks for understanding self-organization in biological polymers and synthetic materials. At low activity, all models exhibit similar behavior; as activity increases, subtle differences emerge in intermediate regimes, but at high activity, their behaviors converge. Adjusting for differences in mean active force reveals nearly identical behavior across models, even across varying filament configurations and bending rigidities. Our results highlight the importance of force definitions in active polymer simulations and provide insights into phase transitions across varying filament configurations.

Involved external institutions

Universidad Complutense de Madrid (UCM) ES Spain (ES) Forschungszentrum Jülich / Research Centre Jülich (FZJ) DE Germany (DE) University of Padua / Universita degli Studi di Padova IT Italy (IT)

How to cite

APA:

Janzen, G., Miranda, J.P., Martín-Roca, J., Malgaretti, P., Locatelli, E., Valeriani, C., & Fernandez, D.A. (2025). Active polymer behavior in two dimensions: A comparative analysis of tangential and push-pull models. Journal of Chemical Physics, 162(11). https://doi.org/10.1063/5.0243432

MLA:

Janzen, Giulia, et al. "Active polymer behavior in two dimensions: A comparative analysis of tangential and push-pull models." Journal of Chemical Physics 162.11 (2025).

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