Twist-fold processes and energy relaxation in nature

by Prof. Renzo L. RICCA

Friday 12 Sep 2025, 12:00 → 14:00 Asia/Shanghai

318 (数理楼)

题目：Twist-fold processes and energy relaxation in nature
摘要：Twist-fold processes are ubiquitous in nature and are often governed by energy relaxation mechanisms. In this talk we show how the Reidemeister twist move associated with an inflexional instability of a physical knot leads to an energy change of the system, sometimes with dramatic effects. Three different cases are considered: when magnetic energy is released, when elastic energy is stored, and when tension energy is re-distributed through the topological re-organisation of a soap film.
报告人简介：Renzo L. RICCA教授，剑桥大学三一学院数学硕士、博士，意大利米兰–比可卡大学教授，我校特聘教授。主要研究领域为拓扑流体力学，是该领域剑桥学派代表人物。已发表SCI论文近百篇，包括唯一作者Nature一篇，PNAS等著名期刊多篇。主编学术专著4部，综述性论文多篇。学术引用2134次，H指数24，i10指数39。曾长期担任剑桥大学、伦敦大学学院、普林斯顿高研院、巴黎高师的高级研究员。学术兼职包括英美国家自然科学基金、英国工程与物理科学基金评审人，欧盟EC-FET大型开放项目监督协调人，希腊国家科技部高级发展顾问。施普林格、世图、帝国理工等学术出版社专著类审稿人，Phys Rev Lett等著名期刊审稿人。