从数据中学习S矩阵:通过符号回归从规范理论重新发现引力 / Learning the S-matrix from data: Rediscovering gravity from gauge theory via symbolic regression
1️⃣ 一句话总结
这篇论文展示了如何利用现代机器学习方法,仅通过数值数据就能自动重新发现散射振幅中的关键数学关系,特别是从规范理论推导出引力理论的核心公式,为探索物理理论的深层结构提供了一种数据驱动的新途径。
We demonstrate that modern machine-learning methods can autonomously reconstruct several flagship analytic structures in scattering amplitudes directly from numerical on-shell data. In particular, we show that the Kawai--Lewellen--Tye (KLT) relations can be rediscovered using symbolic regression applied to colour-ordered Yang--Mills amplitudes with Mandelstam invariants as input features. Using standard feature-selection techniques, specifically column-pivoted QR factorisation, we simultaneously recover the Kleiss--Kuijf and Bern--Carrasco--Johansson (BCJ) relations, identifying a minimal basis of partial amplitudes without any group-theoretic input. We obtain the tree-level KLT relations with high numerical accuracy up to five external legs, using only minimal theoretical priors, and we comment on the obstacles to generalising the method to higher multiplicity. Our results establish symbolic regression as a practical tool for exploring the analytic structure of the scattering-amplitude landscape, and suggests a general data-driven strategy for uncovering hidden relations in general theories. For comparison, we benchmark this general approach with a recently introduced neural-network based method.
从数据中学习S矩阵:通过符号回归从规范理论重新发现引力 / Learning the S-matrix from data: Rediscovering gravity from gauge theory via symbolic regression
这篇论文展示了如何利用现代机器学习方法,仅通过数值数据就能自动重新发现散射振幅中的关键数学关系,特别是从规范理论推导出引力理论的核心公式,为探索物理理论的深层结构提供了一种数据驱动的新途径。
源自 arXiv: 2602.15169