Shin'ichirō Tomonaga
shin ichirō tomonaga mio, shin ichirō tomonaga midwayShin'ichirō Tomonaga1 朝永 振一郎, Tomonaga Shin'ichirō, March 31, 1906 – July 8, 1979, usually cited as SinItiro Tomonaga in English,2 was a Japanese physicist, influential in the development of quantum electrodynamics, work for which he was jointly awarded the Nobel Prize in Physics in 19653 along with Richard Feynman and Julian Schwinger
Contents
 1 Biography
 2 Publications
 21 Books
 22 Articles
 3 See also
 4 References
 5 Further reading
 6 External links
Biographyedit
Tomonaga was born in Tokyo in 1906 He was the second child and eldest son of a Japanese philosopher, Tomonaga Sanjūrō He entered the Kyoto Imperial University in 1926 Hideki Yukawa, also a Nobel Prize winner, was one of his classmates during undergraduate school During graduate school at the same university, he worked as an assistant in the university for three years In 1931, after graduate school, he joined Nishina's group in Riken In 1937, while working at Leipzig University Leipzig, he collaborated with the research group of Werner Heisenberg Two years later, he returned to Japan due to the outbreak of the Second World War, but finished his doctoral degree on the study of nuclear materials with his thesis on work he had done while in Leipzig
In Japan, he was appointed to a professorship in the Tokyo University of Education a forerunner of Tsukuba University During the war he studied the magnetron, meson theory, and his supermanytime theory In 1948, he and his students reexamined a 1939 paper by Sidney Dancoff that attempted, but failed, to show that the infinite quantities that arise in QED can be canceled with each other Tomonaga applied his supermanytime theory and a relativistic method based on the nonrelativistic method of Wolfgang Pauli and Fierz to greatly speed up and clarify the calculations Then he and his students found that Dancoff had overlooked one term in the perturbation series With this term, the theory gave finite results; thus Tomonaga discovered the renormalization method independently of Julian Schwinger and calculated physical quantities such as the Lamb shift at the same time
In the next year, he was invited by Robert Oppenheimer to work at the Institute for Advanced Study in Princeton He studied a manybody problem on the collective oscillations of a quantummechanical system In the following year, he returned to Japan and proposed the TomonagaLuttinger liquid In 1965, he was awarded the Nobel Prize in Physics, with Julian Schwinger and Richard P Feynman, for the study of QED, specifically for the discovery of the renormalization method He died of throat cancer in Tokyo in 1979
Tomonaga was married in 1940 to Ryōko Sekiguchi They had two sons and one daughter He was awarded the Order of Culture in 1952, and the Grand Cordon of the Order of the Rising Sun in 1976
Publicationsedit
Booksedit
 Tomonaga, SinItiro 1997 The Story of Spin Oka, Takeshi trans University of Chicago Press ISBN 0226807940
Articlesedit
 Tomonaga, S "On a Relativistically Invariant Formulation of the Quantum Theory of Wave Fields" Prog Theor Phys 1, 27–42 1946
 Koba, Z, Tati, T and Tomonaga, S "On a Relativistically Invariant Formulation of the Quantum Theory of Wave Fields II" Prog Theor Phys 2, 101–116 1947
 Koba, Z, Tati, T and Tomonaga, S "On a Relativistically Invariant Formulation of the Quantum Theory of Wave Fields III" Prog Theor Phys 2, 198–208 1947
 Kanesawa, S and Tomonaga, S "On a Relativistically Invariant Formulation of the Quantum Theory of Wave Fields IV" Prog Theor Phys 3, 1–13 1948
 Kanesawa, S and Tomonaga, S "On a Relativistically Invariant Formulation of the Quantum Theory of Wave Fields V" Prog Theor Phys 3, 101–113 1948
 Koba, Z and Tomonaga, S "On Radiation Reactions in Collision Processes I" Prog Theor Phys 3, 290–303 1948
 Tomonaga, S and Oppenheimer, J R "On Infinite Field Reactions in Quantum Field Theory" Phys Rev 74, 224–225 1948
See alsoedit
 List of Japanese Nobel laureates
 List of Nobel laureates affiliated with Kyoto University
 List of Nobel laureates affiliated with the University of Tokyo
Referencesedit
 ^ For this spelling see: Shigeru Nakayama, Kunio Gotō, Hitoshi Yoshioka eds, A Social History of Science and Technology in Contemporary Japan: Road to selfreliance 19521959, Trans Pacific Press, 2005, p 723
 ^ Schweber, S S 1994 QED and the Men Who Made It: Dyson, Feynman, Schwinger, and Tomonaga Princeton University Press p 252 ISBN 9780691033273
 ^ Hayakawa, Satio December 1979 "Obituary: Sinitiro Tomonaga" Physics Today 32 12: 66–68 Bibcode:1979PhT32l66H doi:101063/12995326
Further readingedit
 Lundqvist, Stig, ed 1998 Nobel Lectures in Physics 19631970 World Scientific pp 126–39 ISBN 981023404X
 Schweber, Silvan S 1994 QED and the Men Who Made It: Dyson, Feynman, Schwinger, and Tomonaga Princeton University Press ISBN 0691033277
 Tomonaga's Nobel Prize Lecture
External linksedit
Wikiquote has quotations related to: Shin'ichirō Tomonaga 
 Nobel Prize biography
 Shinichiro Tomonaga
 Fundamental work in quantum electrodynamics, with deepploughing consequences for the physics of elementary particles



1901–1925 


1926–1950 


1951–1975 


1976–2000 


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