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AI comes up with bizarre physics experiments, but they work


Artificial intelligence software is designing novel experimental protocols that improve upon the work of human physicists, although the humans are still “doing a lot of baby-sitting.”

Construction began in 1994 and took more than 20 years, including a four-year shutdown to improve the detectors, before LIGO detected its first gravitational wave in 2015: a ripple in the space-time fabric coming from the faraway collision of a pair of black holes. That was the state of affairs in 2021, when Krenn’s team started designing new experiments with the aid of software they dubbed PyTheus — Py for the programming language Python, and Theus for Theseus, after the Greek hero who killed the mythical Minotaur. Rose Yu, a computer scientist at the University of California, San Diego, trained machine learning models to find symmetries in data from the Large Hadron Collider.

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