High Quality Content by WIKIPEDIA articles! John Clive Ward (1924–2000), was a British-Australian physicist. His most famous creation was the Ward-Takahashi identity, originally known as "Ward Identity" (or "Ward Identities"). This celebrated result, in quantum electrodynamics, was inspired by a conjecture of Dyson and was disclosed in a one-half page letter typical of Ward`s succinct style. In their recent book entitled Quantum Electrodynamics, Greiner and Reinhardt state in their discussion of charge renormalization: "Yet the Ward Identity has a much more fundamental significance: it ensures the universality of the electromagnetic interaction."
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