Takeo Matsubara

Takeo Matsubara (松原武生, Takeo Matsubara, April 3, 1921 - December 15, 2014) was a Japanese physicist. Matsubara proposed a method of statistical mechanics related to Green's function (many-body theory), by applying quantum field theory techniques to statistical physics. He graduated from Osaka Imperial University, and worked as full professor in Hokkaido University, Kyoto University, and Okayama University of Science. He was the winner of the Nishina Memorial Prize in 1961, and took the directorship of the Physical Society of Japan.

His research interests were dielectric materials, superconductivity and superfluidity. He wrote various physics textbooks in Japanese.