Charles Henry Bennett (born 1943) is an American physicist, information theorist and IBM Fellow at IBM Research. His work has concentrated on the physical basis of information, applying quantum physics to the problems of information exchange, and he has played a major role in elucidating the interconnections between physics and information, particularly in quantum computation, as well as in cellular automata and reversible computing. He co-developed the first practical quantum cryptography protocol, BB84, with Gilles Brassard, and is considered one of the founding fathers of modern quantum information theory. He shared the 2025 Turing Award with Brassard for their work in quantum information science.
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Source Wikipedia: Reversible computing
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Wikipedia: Reversible computing
Wikimedia FoundationAssociated With: Reversible Computing, History section, paragraph on Bennett's 1973 simulation resultQuote, Associated With: Reversible Computing, History section, paragraph on Bennett's 1973 simulation result
A landmark result by Charles H. Bennett in 1973 demonstrated that any standard Turing machine can be simulated by a reversible one.
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