John C. Tully is a theoretical chemist, a researcher and Sterling Professor emeritus of Chemistry at Yale University.
He is known for his development of surface hopping, a method for including excited states in molecular dynamics calculations.
[1] Much of his career was spent at Bell Labs, from 1970 to 1996, exploring theoretical chemistry and surface science.
He is a member of the National Academy of Sciences and the International Academy of Quantum Molecular Science.
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