Tomonaga Shinichiro

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Tomonaga Shin’ichiro


Born Mar. 31, 1906, in Kyoto. Japanese theoretical physicist.

Tomonaga graduated from Kyoto University in 1929. In 1932 he became a staff member of the Institute of Physical and Chemical Research, where he worked under Y. Nishina. From 1937 to 1939 he studied under W. Heisenberg in Leipzig. He became a professor at the Tokyo University of Education in 1941.

Tomonaga’s principal works deal with magnetism, the theory of neutrons, and quantum field theory. His relativistically invariant formulation of the quantum theory of wave fields stimulated the development of a renormalization method.

Tomonaga received a Nobel Prize in 1965. He became a foreign member of the Academy of Sciences of the USSR in 1971.


In Russian translation:
“Reliativistski invariantnaia formulirovka kvantovoi teorii volnovykh polei.” In the collection Noveishee razvitie kvantovoi elektrodina-miki. Moscow, 1954. Pages 1–11.
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His most notable work was on quantum electrodynamics and in 1965, together with Sin-Itiro Tomonaga and Julian Schwinger, he received the Nobel Prize in physics "for their fundamental work in quantum electrodynamics, with deep-ploughing consequences for the physics of elementary particles" (4).
com)-- Freeman Dyson is recognised for demonstrating the equivalence of two formulations of quantum electrodynamics: Richard Feynman's diagrams, and the operator method developed by Julian Schwinger and Sin-Itiro Tomonaga.
Feynman shared the 1965 Nobel physics prize with Sin-Itiro Tomonaga and Julian Schwinger for "fundamental work in quantum electrodynamics, with deep-ploughing consequences for the physics of elementary particles:' Krauss here gives us useful perspective on how physicist Freeman Dyson was crucial in Feynman's career and fame.
Feynman, Julian Schwinger, and Sin-Itiro Tomonaga figured out a way to make the infinite values cancel out by means of a process called renormalization.