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Julius Ashkin (1920–1982) was a leader in experimental and theoretical physics known for furthering the evolution of particle physics from nuclear physics. As a theoretical physicist he made contributions in the fields of statistical mechanics, solid state physics, nuclear physics, and elementary particle physics. As an experimental physicist his main contributions concerned the passage of certain particles (pi-mesons, or pions) through solid matter and their subsequent decay. He was recognized for the quality of his research and teaching.〔 == Education == Ashkin attended Brooklyn's James Madison High School, graduating in 1936, while still a few weeks shy of his 16th birthday. In his senior year, he received honors and awards. He was awarded a scholarship to attend Columbia University where he studied four years as an undergraduate (1936–40) and three as a graduate (1940–43). It is quite likely that during his undergraduate years Ashkin came to know the physicists then working at Columbia. Prominent physicists on Columbia's faculty in those years included professors Enrico Fermi, Isidor Isaac Rabi, Hans Bethe (visiting), Edward Teller (visiting), and instructors :de:Arnold Nordsieck, Hugh Paxton, and Willis Lamb. All these men were extremely competent scientists who would later be recognized as among the finest of their generation and four of them — Fermi, Rabi, Bethe, and Lamb — would later be awarded the Nobel Prize. As an undergraduate, Ashkin was invited to join an honorary mathematics society and received awards.〔 He entered the fall semester as an assistant lecturer and began work toward a masters degree. A year later, having received that degree, he began work toward a Ph.D. under the supervision of Willis Lamb. As a graduate student, Ashkin contributed to one paper in astrophysics and two papers in statistical mechanics He collaborated with Lamb in writing the first of the two papers on statistical mechanics and with Teller in writing the second. This second paper, "Statistics of Two-Dimensional Lattices with Four Components"〔 〔〔〔 has since been frequently cited. He received his Ph.D. in Physics in 1943.〔 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Julius Ashkin」の詳細全文を読む スポンサード リンク
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