Zero-temperature Avalanche Criticality Governing Dynamical Heterogeneity in Supercooled Liquids

Norihiro Oyama; Yusuke Hara; Takeshi Kawasaki; Kang Kim

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arXiv · 2604.03573

Zero-temperature Avalanche Criticality Governing Dynamical Heterogeneity in Supercooled Liquids

Norihiro Oyama·Yusuke Hara·Takeshi Kawasaki·Kang Kim

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Abstract

In supercooled liquids, mesoscale mobile and immobile domains are ubiquitously observed, a phenomenon known as dynamical heterogeneity. Extensive studies have established that the characteristic size of these domains grows upon cooling and exhibits system-size dependence. However, the physical origin of this domain growth remains a matter of active debate. In this work, using molecular simulations, we demonstrate that the temperature and system-size dependence of dynamical heterogeneity can be explained within a zero-temperature avalanche criticality picture.

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Norihiro Oyama, Yusuke Hara, Takeshi Kawasaki, Kang Kim. 2026-04-04. Zero-temperature Avalanche Criticality Governing Dynamical Heterogeneity in Supercooled Liquids. https://arxiv.org/abs/2604.03573

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