Sin-Itiro Tomonaga was born in 1906 in Kohinata Sango-cho, Koishikawa-ku, Tokyo, Japan (now Kohinata, Bunkyo-ku). He was the eldest son and the second child of Japanese philosopher Sanjuro Tomonaga (both Sanjuro Tomonaga and Kotaro Nishida were members of the Kyoto School). After graduating from the Third High School (Third High School), Sin-Itiro Tomonaga entered the Department of Physics at Kyoto Imperial University in 1926. Hideki Yukawa, Japan's first Nobel laureate, was Tomonaga's classmate in the Third High School and Kyoto University. After graduating from the university, he continued to work as an assistant professor for 3 years. During this period, Sin-Itiro Tomonaga joined the team led by Yoshio Nishina at the RIKEN Institute.
晟 : Interesting!