从随机场的平均场模型中的雪崩到随机场的静态波桑分支事件的通用路线
Jordi Baró1,2,3, Álvaro Corral3,4,5
1Departament de Fisica de la Materia Condensada, Universitat de Barcelona, 08028 Barcelona, Spain.
Chaos (Woodbury, N.Y.)
|July 1, 2025
概括
这项研究将平均场模型中的临界和次临界雪崩映射到无记忆分支过程中. 这揭示了不同模型的通用行为,简化了雪崩分析.
科学领域:
- 统计力学 统计力学
- 复杂系统理论 复杂系统理论
- 数学物理 数学物理
背景情况:
- 平均场模型中的雪崩表现出普遍的行为.
- 这些现象可以通过无记忆的分支过程来描述.
- 了解雪崩动态在各种科学领域至关重要.
研究的目的:
- 在中场模型中建立一个统一的框架来分析临界和次临界雪崩.
- 为了证明这些雪崩的映射到无记忆的Poisson分支过程.
- 探索不同物理系统中雪崩的普遍性类.
主要方法:
- 开发一个缩小的表达式,在Poisson分支过程中将雪崩映射到根植的树上.
- 导出异热随机场伊辛模型和民主纤维束模型的确切映射.
- 使用此映射,在滑动平均场理论中近似自组织的临界性.
主要成果:
- 一个广泛的临界和次临界雪崩家族被映射到无记忆的Poisson分支过程中.
- 研究模型中的雪崩统计数据正在朝着关键性发展.
- 雪崩动态的差异归因于分支比率的变化.
结论:
- 在平均场雪崩和无记忆分支过程之间存在一个通用映射.
- 这一框架简化了在各种模型中研究雪崩现象的方法.
- 分支比是区分雪崩动态的关键参数.
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