直接从第二绝热不变量优化仿星器全向性
Direct Optimization of Stellarator Omnigenity from the Second Adiabatic Invariant
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中文总结 AI 辅助
该研究针对仿星器三维几何导致粒子损失的问题，提出可微框架直接优化控制粒子约束的基本轨道作用量，得到兼具多项优势的紧凑仿星器设计，实现第一性原理轨道优化与工程约束的整合。
中文摘要 AI 辅助
仿星器为聚变能提供稳态、无中断的路径，但因三维几何导致粒子损失增强。现有优化方法依赖几何代理而非实际捕获粒子轨道条件。我们提出可微框架，直接优化控制粒子约束的基本轨道作用量。该方法得到紧凑仿星器设计，兼具优异快离子约束、有限压强稳定性及线圈兼容性，证明第一性原理轨道优化可与工程约束整合为聚变反应堆设计的单一计算工作流。
英文摘要
Stellarators offer a steady-state, disruption-free path to fusion energy but suffer from enhanced particle losses due to their three-dimensional geometry. Existing optimization methods rely on geometric proxies rather than the actual trapped-particle orbit condition. We present a differentiable framework that directly optimizes the fundamental orbit action governing particle confinement. The approach yields compact stellarator designs with excellent fast-ion confinement, finite-pressure stability, and coil compatibility, demonstrating that first-principles orbit optimization can be integrated with engineering constraints in a single computational workflow for fusion reactor design.
