Shin'ichirō Tomonaga
Shin'ichirō Tomonaga | |
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RIKEN University of Tokyo |
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Shinichiro Tomonaga[1] (朝永 振一郎, Tomonaga Shin'ichirō, March 31, 1906 – July 8, 1979), usually cited as Sin-Itiro 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 1965[3] along with Richard Feynman and Julian Schwinger.
Biography
Tomonaga was born in
Second World War, but finished his doctoral degree (Dissertation PhD from University of Tokyo) on the study of nuclear materials with his thesis on work he had done while in Leipzig.[4]
In Japan, he was appointed to a professorship in the Tokyo University of Education (a forerunner of
magnetron, meson theory, and his super-many-time theory. In 1948, he and his students re-examined a 1939 paper by Sidney Dancoff that attempted, but failed, to show that the infinite quantities that arise in quantum electrodynamics (QED) can be canceled with each other. Tomonaga applied his super-many-time theory and a relativistic method based on the non-relativistic 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 1949,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.
In recognition of three
Tsukuba City in 2015.[5]
Recognition
- 1946 – Asahi Prize
- 1948 – Japan Academy Prize
- 1951 – Member of the Japan Academy
- 1952 – Order of Culture
- 1964 – Lomonosov Gold Medal
- 1965 – Nobel Prize in Physics
- 1965 – elected to the United States National Academy of Sciences[6]
- 1966 – elected to the American Philosophical Society[7]
- 1967 – Grand Cordon of the Order of the Rising Sun
- 1975 – elected to the American Academy of Arts and Sciences[8]
Selected publications
Books
- Tomonaga, Sin-Itiro (1997). The Story of Spin. Oka, Takeshi (trans.). University of Chicago Press. ISBN 0-226-80794-0.
Articles
- 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 also
- List of Japanese Nobel laureates
- List of Nobel laureates affiliated with Kyoto University
- List of Nobel laureates affiliated with the University of Tokyo
References
- ^ For this spelling see: Shigeru Nakayama, Kunio Gotō, Hitoshi Yoshioka (eds.), A Social History of Science and Technology in Contemporary Japan: Road to self-reliance 1952-1959, Trans Pacific Press, 2005, p. 723.
- ISBN 9780691033273..
- .
- ^ a b c "Sin-Itiro Tomonaga - Biographical". www.nobelprize.org. Retrieved 2018-01-03.
- ^ ノーベル賞:江崎、小林、朝永氏の銅像やレリーフ設置 完成記念式でお披露目 「子どもが夢を」−−つくば・中央公園 ／茨城 - 毎日新聞 Archived 2015-04-24 at the Wayback Machine
- ^ "Sin-itiro Tomonaga". www.nasonline.org. Retrieved 2022-09-29.
- ^ "APS Member History". search.amphilsoc.org. Retrieved 2022-09-29.
- ^ "Sin-itiro Tomonaga". American Academy of Arts & Sciences. Retrieved 2022-09-29.
Further reading
- Lundqvist, Stig, ed. (1998). Nobel Lectures in Physics (1963-1970). World Scientific. pp. 126–39. ISBN 981-02-3404-X.
- ISBN 0-691-03327-7.
- Tomonaga's Nobel Prize Lecture.
External links
Wikiquote has quotations related to Shin'ichirō Tomonaga.
- Shin'ichirō Tomonaga on Nobelprize.org including the Nobel Lecture, May 6, 1966 Development of Quantum Electrodynamics
- Shinichiro Tomonaga
- Fundamental work in quantum electrodynamics, with deep-ploughing consequences for the physics of elementary particles.
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