ArticleProceedings of the National Academy of Sciences of the United States of America2022
Correlation of plastic events with local structure in jammed packings across spatial dimensions.
Article in Proceedings of the National Academy of Sciences of the United States of America, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.
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5 citing papers in PubMed, 16 citations in OpenAlex.
- Plasticity and the Transition from Physical Gels to Yielding Liquids.Gels (Basel, Switzerland) · 2026Article
- Persistent homology elucidates hierarchical structures responsible for mechanical properties in covalent amorphous solids.Nature communications · 2025Article
- Structural origin of relaxation in dense colloidal suspensions.Proceedings of the National Academy of Sciences of the United States of America · 2024Article
- Finding defects in glasses through machine learning.Nature communications · 2023Article
- Topology of vibrational modes predicts plastic events in glasses.Nature communications · 2023Article
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Authors and funding
3 authors at 1 institution in 1 country.
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No grant is acknowledged in the PubMed record.
Abstract
In frictionless jammed packings, existing evidence suggests a picture in which localized physics dominates in low spatial dimensions, d = 2, 3, but quickly loses relevance as d rises, replaced by spatially extended mean-field behavior. For example, quasilocalized low-energy vibrational modes and low-coordination particles associated with deviation from mean-field behavior (rattlers and bucklers) all vanish rapidly with increasing d. These results suggest that localized rearrangements, which are associated with low-energy vibrational modes, correlated with local structure, and dominant in low dimensions, should give way in higher d to extended rearrangements uncorrelated with local structure. Here, we use machine learning to analyze simulations of jammed packings under athermal, quasistatic shear, identifying a local structural variable, softness, that correlates with rearrangements in dimensions d = 2 to d = 5. We find that softness—and even just the local coordination number Z—is essentially equally predictive of rearrangements in all d studied. This result provides direct evidence that local structure plays an important role in higher d, suggesting a modified picture for the dimensional cross-over to mean-field theory.
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