The Nobel Prize in Physics 1965
Sin-Itiro Tomonaga, Julian Schwinger, Richard P. Feynman
Richard P. Feynman
Born: 11 May 1918, New York, NY, USA
Died: 15 February 1988, Los Angeles, CA, USA
Affiliation at the time of the award: California Institute of Technology (Caltech), Pasadena, CA, USA
Prize motivation: "for their fundamental work in quantum electrodynamics, with deep-ploughing consequences for the physics of elementary particles"
Field: quantum electrodynamics, quantum mechanics
Following the successes of the theory of relativity and quantum mechanics, a first relativistic theory was formulated for the interaction of charged particles with electromagnetic fields. However, in the work of reformulating the theory, Richard Feynman made contributions to a new quantum electrodynamics, in particular in 1948, he introduced so called Feynman diagrams, a graphical representation of interactions between different particles. These diagrams facilitate calculations of interaction probabilities.