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Hybrid universality classes of systemic cascades
Title / Series / Name
Publication Volume
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Pages
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Keywords
General Chemistry
General Biochemistry,Genetics and Molecular Biology
General Physics and Astronomy
General Biochemistry,Genetics and Molecular Biology
General Physics and Astronomy
URI
https://hdl.handle.net/20.500.14018/26972
Abstract
Cascades are self-reinforcing processes underlying the systemic risk of many complex systems. Understanding the universal aspects of these phenomena is of fundamental interest, yet typically bound to numerical observations in ad-hoc models and limited insights. Here, we develop a unifying approach that reveals two distinct universality classes of cascades determined by the global symmetry of the cascading process. We provide hyperscaling arguments predicting hybrid critical phenomena characterized by a combination of both mean-field spinodal exponents and d-dimensional corrections, and show how parity invariance influences the geometry and lifetime of critical avalanches. Our theory applies to a wide range of networked systems in arbitrary dimensions, as we demonstrate by simulations encompassing classic and novel cascade models, revealing universal principles of cascade critical phenomena amenable to experimental validation.
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Publisher
Place of Publication
Type
Journal article
Date
2025-02-06
Language
ISBN
Identifiers
10.1038/s41467-024-55639-3