Microscopic Intervention Yields Abrupt Transition in Interdependent Ferromagnetic Networks

Bnaya Gross, Ivan Bonamassa, Shlomo Havlin

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The study of interdependent networks has recently experienced a boost with the development of experimentally testable materials that physically realize their novel critical behaviors, calling for systematic studies that go beyond the percolation paradigm. Here we study the critical kinetics and phase transitions of a model of interdependent spatial ferromagnetic networks where dependency couplings between networks are realized by a thermal interaction having a tunable spatial range. We show how the critical phenomena and the phase diagram of this realistic model are highly affected by the range of thermal dissipation and how the latter influences the microscopic kinetics of the model. Furthermore, we show the existence of a new phase where localized microscopic interventions by heating or magnetic fields yield a macroscopic phase transition. Our results unveil rich phenomena and realistic protocols for controlling the macroscopic phases of interdependent materials by means of microscopic interventions.

Original languageEnglish
Article number227401
JournalPhysical Review Letters
Issue number22
StatePublished - 31 May 2024

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© 2024 authors. Published by the American Physical Society.


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