Morikazu Toda

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Morikazu Toda ( Japanese 戸 田 盛 和 , Toda Morikazu ; born October 20, 1917 in Tokyo Prefecture ; † October 6, 2010) was a Japanese physicist who studied statistical mechanics.

Life

Toda studied physics at the Imperial University of Tokyo (graduating in 1940), was from 1942 assistant professor at the Imperial University of Keijō (today Seoul State University ) and from 1949 assistant professor at the Pedagogical University of Tokyo (today: University of Tsukuba ). In 1952 he received his doctorate at the University of Tokyo and was then professor at the Pedagogical University, where he was from 1970 at the Research Institute for Optics and from 1975 Professor Emeritus. In 1975 he went to Chiba University and from 1976 to about 1983 at Yokohama State University . From 1987 to 1989 he was at the University of the Air (now Open University of Japan ). He was a visiting researcher at Caltech in 1955 , at the Free University of Brussels in 1956 , visiting professor in São Paulo (1970) and the Norwegian Technical University in Trondheim (1973).

Toda is known for an exactly solvable model of statistical mechanics, the Toda lattice (with exponentially decreasing interaction of the lattice neighbors), which he investigated from 1967 and found soliton solutions (as in the 1950s Enrico Fermi , Pasta, Stanislaw Ulam in another lattice in the Fermi-Pasta-Ulam experiment , which Toda served as a stimulus).

He became a member of the Norwegian Academy of Sciences in 1981. In 1981 he received the Fujiwara Prize and in 1947 the Mainichi Culture Prize .

Fonts

  • Miki Wadati (Editor): Selected Papers of Morikazu Toda. World Scientific 1993 (with biographical information).
  • Theory of nonlinear lattices. Springer 1989.
  • Nonlinear waves and solitons. KTK Scientific Publishers, Tokyo 1989.
  • with Ryogo Kubo , Hashitsume, N. Saito: Statistical Physics. 2nd edition, 2 volumes, Springer 1991.
  • Development of the theory of a nonlinear lattice. In: Progress Theoretical Physics, Supplement, Vol. 59, 1976, pp. 1-35.

Individual evidence

  1. ↑ 物理学 者 ・ 戸 田 盛 和 さ ん 死去 「戸 田格子」 の 数 式 提案 ( Memento of November 10, 2010 in the Internet Archive ), Asahi Shimbun
  2. ↑ Morikazu Toda: Vibration of a Chain with Nonlinear Interaction . In: Journal of the Physical Society of Japan . tape 22 , no. 2 , 1967, p. 431-436 , doi : 10.1143 / JPSJ.22.431 .
  3. ^ Morikazu Toda: Wave Propagation in Anharmonic Lattices . In: Journal of the Physical Society of Japan . tape 23 , no. 3 , 1967, p. 501-506 , doi : 10.1143 / JPSJ.23.501 .
  4. ↑ Morikazu Toda: Mechanics and Statistical Mechanics of Nonlinear Chains . In: Journal of the Physical Society of Japan, Supplement . tape 26 , no. 2 , 1969, p. 235-237 . Morikazu Toda: Erratum: “Mechanics and Statistical Mechanics of Nonlinear Chains” . In: Journal of the Physical Society of Japan . tape
     27 , no. 6 , 1969, p. 1704B-1704B , doi : 10.1143 / JPSJ.27.1704B .
  5. ↑ Morikazu Toda: Waves in Nonlinear Lattice . In: Progress of Theoretical Physics, Supplement . tape 45 , January 5, 1970, pp. 174-200 , doi : 10.1143 / PTPS.45.174 .
personal data
SURNAME Toda, Morikazu
ALTERNATIVE NAMES 戸 田 盛 和 (Japanese)
BRIEF DESCRIPTION Japanese physicist
DATE OF BIRTH October 20, 1917
PLACE OF BIRTH Tokyo prefecture
DATE OF DEATH October 6, 2010