Gross Bnaya, Bonamassa Ivan, Havlin Shlomo
Department of Physics, Bar-Ilan University, 52900 Ramat-Gan, Israel.
Department of Network and Data Science, CEU, Quellenstrasse 51, A-1100 Vienna, Austria.
Phys Rev Lett. 2024 May 31;132(22):227401. doi: 10.1103/PhysRevLett.132.227401.
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.
随着可通过实验测试的材料的发展，相互依存网络的研究最近得到了推动，这些材料在物理上实现了其新颖的临界行为，这就需要进行超越渗流范式的系统研究。在这里，我们研究了相互依存的空间铁磁网络模型的临界动力学和相变，其中网络之间的依赖耦合是通过具有可调空间范围的热相互作用实现的。我们展示了这个现实模型的临界现象和相图如何受到热耗散范围的高度影响，以及后者如何影响模型的微观动力学。此外，我们展示了一个新相的存在，在这个相中，通过加热或磁场进行的局部微观干预会产生宏观相变。我们的结果揭示了丰富的现象以及通过微观干预控制相互依存材料宏观相的现实方案。
