Controlling the glass transition through active fluctuating interactions
Abstract
Fluctuating pairwise interactions are understood to drive fluidlike states in dense biological systems. These states find a broad range of functionalities, such as directing growth during morphogenesis and forming aggregates with heightened mechanical response. However, a tractable model capturing the role of microscopic fluctuating interactions in these structural transitions is crucially lacking. Here, we study a p-spin model with fluctuating pairwise couplings (of strength Da and persistence time ta) as a schematic model for interactionmediated fluidization. We find that while stronger fluctuations suppress the glass transition, more persistent fluctuations have the opposite effect. We identify the presence of an emergent fluctuation-dissipation relation at long times. We numerically extract the critical temperature Tg(Da, ta) from a scaling relation near the transition, illustrating how microscopic fluctuations control the glass transition.
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BibTeX
@article{sezik2026controlling,
title = {{Controlling the glass transition through active fluctuating interactions}},
author = {Emir Sezik and Henry Alston and Thibault Bertrand},
journal = {Physical Review E},
year = {2026},
month = sep,
doi = {10.1103/fm3j-829g},
eprint = {2509.07619},
archivePrefix = {arXiv},
url = {https://hal.science/hal-05753571v1},
note = {CC BY 4.0},
}
RIS
TY - JOUR
TI - Controlling the glass transition through active fluctuating interactions
AU - Emir Sezik
AU - Henry Alston
AU - Thibault Bertrand
PY - 2026
DA - 2026/09/17
JO - Physical Review E
DO - 10.1103/fm3j-829g
UR - https://hal.science/hal-05753571v1
AB - Fluctuating pairwise interactions are understood to drive fluidlike states in dense biological systems. These states find a broad range of functionalities, such as directing growth during morphogenesis and forming aggregates with heightened mechanical response. However, a tractable model capturing the role of microscopic fluctuating interactions in these structural transitions is crucially lacking. Here, we study a p-spin model with fluctuating pairwise couplings (of strength Da and persistence time ta) as a schematic model for interactionmediated fluidization. We find that while stronger fluctuations suppress the glass transition, more persistent fluctuations have the opposite effect. We identify the presence of an emergent fluctuation-dissipation relation at long times. We numerically extract the critical temperature Tg(Da, ta) from a scaling relation near the transition, illustrating how microscopic fluctuations control the glass transition.
SN - 2470-0045
SN - 2470-0053
ER -