Tuning Steady Shear Rheology through Active Dopants

Fuente: arXiv
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Main Authors: Shee, Amir, Bandyopadhyay, Ritwik, Yue, Haicen
Format: Preprint
Published: 2025
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author Shee, Amir
Bandyopadhyay, Ritwik
Yue, Haicen
author_facet Shee, Amir
Bandyopadhyay, Ritwik
Yue, Haicen
contents We numerically investigate the steady shear rheology of mixtures of active and passive Brownian particles, with varying fractions of active components. We find that even a small fraction of active dopants triggers fluidization with comparable efficiency to fully active systems. A combined parameter, active energy, given by dopant fraction multiplied by propulsion speed squared controls the steady shear rheology and glass transition of the active-passive mixtures. These results together provide a quantitative strategy for fine-tuning the mechanical properties of a soft material with small amounts of active dopants.
format Preprint
id arxiv_https___arxiv_org_abs_2506_05262
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Tuning Steady Shear Rheology through Active Dopants
Shee, Amir
Bandyopadhyay, Ritwik
Yue, Haicen
Soft Condensed Matter
Statistical Mechanics
We numerically investigate the steady shear rheology of mixtures of active and passive Brownian particles, with varying fractions of active components. We find that even a small fraction of active dopants triggers fluidization with comparable efficiency to fully active systems. A combined parameter, active energy, given by dopant fraction multiplied by propulsion speed squared controls the steady shear rheology and glass transition of the active-passive mixtures. These results together provide a quantitative strategy for fine-tuning the mechanical properties of a soft material with small amounts of active dopants.
title Tuning Steady Shear Rheology through Active Dopants
topic Soft Condensed Matter
Statistical Mechanics
url https://arxiv.org/abs/2506.05262