Machine-learning hidden symmetries
Abstract
We present an automated method for finding hidden symmetries, defined as symmetries that become manifest only in a new coordinate system that must be discovered. Its core idea is to quantify asymmetry as violation of certain partial differential equations, and to numerically minimize such violation over the space of all invertible transformations, parametrized as invertible neural networks. For example, our method rediscovers the famous Gullstrand-Painleve metric that manifests hidden translational symmetry in the Schwarzschild metric of non-rotating black holes, as well as Hamiltonicity, modularity and other simplifying traits not traditionally viewed as symmetries.
Cite
@article{arxiv.2109.09721,
title = {Machine-learning hidden symmetries},
author = {Ziming Liu and Max Tegmark},
journal= {arXiv preprint arXiv:2109.09721},
year = {2022}
}
Comments
Replaced to match accepted PRL version. Improved training, discussion & noise modeling. 14 pages & 4 figs including supplementary material