时间：2025年5月26日（周一）14:00
地点：紫金港校区海纳苑8幢323教室
报告题目：Optimizing omnigenity like quasisymmetry for stellarators
报告人：祝曹祥
摘要：
Omnigenous magnetic fields, where the bounce-averaged radial drift vanishes, offer a promising solution to confine charged particles in fusion devices, particularly in stellarators. However, non-quasisymmetric omnigenity has remained underexplored due to the absence of a general optimization method. We introduce a novel approach for optimizing omnigenity. With simplicity comparable to quasisymmetry (QS) optimization, the new method unifies both QS and non-QS omnigenity optimization and can be further generalized to optimize configurations beyond omnigenity. This approach has led to the realization of precisely omnigenous configurations with exceptional confinement and unprecedented compactness. Additionally, novel configurations like pseudosymmetry and piecewise omnigenity have been directly optimized for the first time. These advances enable efficient explorations of practical stellarator designs with enhanced confinement and engineering feasibility.
个人简历：
个人简介：祝曹祥，中国科学技术大学特任教授、博士生导师，等离子体物理与聚变工程系副主任，于2012、2018年在中国科学技术大学先后获得学士和博士学位，随后前往美国普林斯顿大学等离子体物理国家实验室担任助理研究员和副研究员，2022年3月全职加入中国科学技术大学核科学技术学院。长期从事磁约束聚变仿星器的磁场位形优化与三维线圈设计等方向的工作，在三维线圈新型设计方法、线圈扰动敏感度计算、永磁体仿星器设计、三维磁流体平衡等方面取得了一系列成果。在Phys. Rev. Lett.、 Ncul. Fusion等期刊上发表论文近40篇，在美国物理学会年会等国际重要学术会议上做特邀报告十余次，荣获蔡诗东等离子体物理奖、IOP出版集团中国高被引论文奖、2021年国际原子能机构(IAEA) Nuclear Fusion Award Final List等荣誉。
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