John Hubbard (physicist)

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John Hubbard (1931-1980) was a British physicist, best known from the Hubbard model for interacting electrons, the Hubbard-Stratonovich transformation, and the Hubbard approximations. He graduated from Imperial College London, receiving a B.Sc. (1955) and a Ph.D. degree (1958). He was the Head of the Solid State Theory Group at the Atomic Energy Research Establishment in Harwell (England), and worked at the IBM Research Laboratory in San Jose, California (1976-1980). Most of his work falls into the field of the theory of magnetism. He died in 1980 after suffering a heart stroke.