arXiv:2605.17326hep-latcs.LG2026-05
提出一种新噪声调度,让规范场理论中的扩散模型自动线性衰减作用量。
Noise scheduling and linear dynamics in diffusion models on Lie groups
- 在李群上设计特定噪声调度,使过程自然产生线性动力学
- 扩散时间越长,威尔逊作用量期望值呈线性下降
- 相比欧氏空间无需额外设计漂移项,更适用于规范场模拟
我们研究了李群上扩散过程中噪声调度的作用,重点关注其在晶格规范场理论中的应用。结果表明,特定的噪声调度可导致威尔逊作用量期望值随扩散时间线性衰减。与欧氏空间扩散模型需显式设计漂移项才能实现类似行为不同,在李群设置下该现象可自然出现。
原文摘要 · Abstract (English)
We investigate the role of the noise schedule in diffusion processes on Lie groups, with particular emphasis on applications to lattice gauge theory. We show that a specific noise schedule leads to a linear decay of the expectation value of the Wilson action as a function of diffusion time. We compare this with Euclidean diffusion models, where such behavior requires an explicitly designed drift term, while in the Lie-group setting it arises naturally.
扩散模型李群规范场
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