JOEL WILLIAMS, ASSOCIATE EDITOR [email protected]CAMBRIDGE, Mass., May 20, 2021 — Researchers at Raytheon BBN Technologies developed a method of single-photon detection based on a Josephson junction. The advancement, which is poised to spur development in sensor, communication, and quantum processing technology, features the Josephson junction in a role that is analogous to that of a transistor in electronic systems, said Kin Chung Fong, a quantum information processing scientist at Raytheon BBN Technologies. Fong is also a research associate at Harvard University. 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