Journal
PHYSICAL REVIEW LETTERS
Volume 128, Issue 18, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.128.180201
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Funding
- Casey and Family Foundation
- Foundational Questions Institute
- Rothberg Family Fund for Cognitive Science and Institute for Artificial Intelligence and Fundamental Interactions (IAIFI) through NSF [PHY-2019786]
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This automated method can find hidden symmetries by quantifying asymmetry and numerically optimizing to minimize violation in all invertible transformations. It has rediscovered hidden symmetries like the Gullstrand-Painlevé metric.
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-Painlev?? metric that manifests hidden translational symmetry in the Schwarzschild metric of nonrotating black holes, as well as Hamiltonicity, modularity, and other simplifying traits not traditionally viewed as symmetries.
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