Julian Schwinger
Scientist
Julian Seymour Schwinger (February 12, 1918 – July 16, 1994) was a Nobel Prize winning American theoretical physicist. He is best known for his work on the theory of quantum electrodynamics (QED), in particular for developing a relativistically invariant perturbation theory, and for renormalizing QED to one loop order. Schwinger was a professor in the physics department at UCLA.Schwinger is recognized as one of the greatest physicists of the twentieth century, responsible for much of modern quantum field theory, including a variational approach, and the equations of motion for quantum fields. He developed the first electroweak model, and the first example of confinement in 1+1 dimensions. He is responsible for the theory of multiple neutrinos, Schwinger terms, and the theory of the spin 3/2 field.
Personal facts
| Birth date | February 12, 1918 |
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| Birth name | Julian Seymour Schwinger |
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| Birth place | New York City , United States |
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| Date of death | July 16, 1994 |
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| Place of death | Los Angeles , United States |
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| Known for | Schwinger's quantum action principle Lippmann–Schwinger equation Schwinger parametrization Rarita–Schwinger equation |
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