Toichiro Kinoshita

Toichiro Kinoshita
Born	木下東一郎, Kinoshita Tōichirō (1925-01-23)January 23, 1925
Died	March 23, 2023(2023-03-23) (aged 98)
Occupation	Theoretical physicist
Known for	Kinoshita–Lee–Nauenberg theorem Cornell potential
Awards	Sakurai prize (1990) Guggenheim Fellowship (1973)
Academic background
Education	University of Tokyo
Doctoral advisor	Sin-Itiro Tomonaga
Academic work
Discipline	Physics
Sub-discipline	Theoretical Physics
Institutions	Cornell University

Quantum field theory
Feynman diagram
History
Background Field theory Electromagnetism Weak force Strong force Quantum mechanics Special relativity General relativity Gauge theory Yang–Mills theory
Symmetries Symmetry in quantum mechanics C-symmetry P-symmetry T-symmetry Lorentz symmetry Poincaré symmetry Gauge symmetry Explicit symmetry breaking Spontaneous symmetry breaking Noether charge Topological charge
Tools Anomaly Background field method BRST quantization Correlation function Crossing Effective action Effective field theory Expectation value Feynman diagram Lattice field theory LSZ reduction formula Partition function Propagator Quantization Regularization Renormalization Vacuum state Wick's theorem
Equations Dirac equation Klein–Gordon equation Proca equations Wheeler–DeWitt equation Bargmann–Wigner equations
Standard Model Quantum electrodynamics Electroweak interaction Quantum chromodynamics Higgs mechanism
Incomplete theories String theory Supersymmetry Technicolor Theory of everything Quantum gravity
Scientists Adler Anderson Anselm Bargmann Becchi Belavin Bell Berezin Bethe Bjorken Bleuer Bogoliubov Brodsky Brout Buchholz Cachazo Callan Coleman Dashen DeWitt Dirac Doplicher Dyson Englert Faddeev Fadin Fayet Fermi Feynman Fierz Fock Frampton Fritzsch Fröhlich Fredenhagen Furry Glashow Gelfand Gell-Mann Glimm Goldstone Gribov Gross Gupta Guralnik Haag Heisenberg Hepp Higgs Hagen 't Hooft Iliopoulos Ivanenko Jackiw Jaffe Jona-Lasinio Jordan Jost Källén Kendall Kinoshita Klebanov Kontsevich Kuraev Landau Lee Lehmann Leutwyler Lipatov Łopuszański Low Lüders Maiani Majorana Maldacena Migdal Mills Møller Naimark Nambu Neveu Nishijima Oehme Oppenheimer Osterwalder Parisi Pauli Peskin Plefka Polyakov Pomeranchuk Popov Proca Rubakov Ruelle Salam Schrader Schwarz Schwinger Segal Seiberg Semenoff Shifman Shirkov Skyrme Sommerfield Stora Stueckelberg Sudarshan Symanzik Thirring Tomonaga Tyutin Vainshtein Veltman Virasoro Ward Weinberg Weisskopf Wentzel Wess Wetterich Weyl Wick Wightman Wigner Wilczek Wilson Witten Yang Yukawa Zamolodchikov Zamolodchikov Zee Zimmermann Zinn-Justin Zuber Zumino
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Tōichirō Kinoshita (木下東一郎, Kinoshita Tōichirō ; January 23, 1925 – March 23, 2023) was a Japanese-born American theoretical physicist.

Kinoshita was born in Tokyo on January 23, 1925. He studied physics at the University of Tokyo, earning his bachelor's degree in 1947 and then his PhD in 1952. Afterwards he spent two years as a postdoctoral researcher of the Institute of Advanced Study, Princeton, New Jersey, and then one year at Columbia University. His research interests included quantum field theory, and the Standard Model.^[1]

Kinoshita worked at the Newman Laboratory of Nuclear Studies at Cornell University from 1955. He was at first a research associate. In 1958 he became assistant professor, and in 1960 associate professor. He became a full professor in 1963, and in 1992 he was appointed Goldwin Smith professor. In 1995 he retired from Cornell as professor emeritus. In 1962–63 he was a Ford Fellow at CERN. He was a guest professor at the University of Tokyo, at CERN, at the national laboratory for high-energy physics KEK in Japan, and at RIKEN in Japan.^[1][2]

Kinoshita was known for his extensive and detailed calculations of quantum electrodynamics (QED), the theory of the interaction of light and matter, on which physicist Abraham Pais called him the "expert among experts".^[3] QED is often described as the most accurate physical theory in existence. Among the best-known examples are Kinoshita's calculations of the anomalous magnetic moments of the electron and the muon.