Mobility-network topology carries incremental, softness-orthogonal information about future aging dynamics in a glass-forming liquid

Zhenpeng Li

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arXiv · 2609.34022

Mobility-network topology carries incremental, softness-orthogonal information about future aging dynamics in a glass-forming liquid

Zhenpeng Li

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Abstract

Does the spatial organization of particle mobility in a glass predict future motion beyond what local structure knows? In leakage-free simulations of an aging Kob--Andersen liquid ($N=2028$; 200 trajectories; three temperatures), mobility-network topology raises the out-of-fold $R^2$ by $\dRtwo=0.0049$--$0.0122$, monotonically with quench depth, retaining $\ge 98\%$ atop softness-class baselines. Giant mobile components are dense hotspots whose members subsequently quiet down: exhaustion zones of cooperative motion --- a spatial anticorrelation channel invisible to single-particle descriptors.

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Zhenpeng Li. 2026-09-27. Mobility-network topology carries incremental, softness-orthogonal information about future aging dynamics in a glass-forming liquid. https://arxiv.org/abs/2609.34022

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