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翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク Gregor Wentzel ： ウィキペディア英語版 Gregor Wentzel Gregor Wentzel (February 17, 1898 – August 12, 1978) was a German physicist known for development of quantum mechanics. Wentzel, Hendrik Kramers, and Léon Brillouin developed the Wentzel–Kramers–Brillouin approximation in 1926. In his early years, he contributed to X-ray spectroscopy, but then broadened out to make contributions to quantum mechanics, quantum electrodynamics, and meson theory.〔Mehra. Volume 1, Part 1, 2001, p. 356.〕〔(Gregor Wentzel ) – ETH Bibliothek.〕〔Jungnickel. Volume 2, 1990, p. 368.〕 == Career == Wentzel began his university education in mathematics and physics in 1916, at the University of Freiburg. During 1917 and 1918, he served in the armed forces during World War I. He then resumed his education at Freiburg until 1919, when he went to the University of Greifswald. In 1920, he went to the Ludwig Maximilian University of Munich (LMU) to study under Arnold Sommerfeld. Wentzel was awarded his doctorate in 1921〔Dissertation title: ''Zur Systematik der Röntgenspekten''.〕 and completed his Habilitation in 1922. He remained at LMU as a Privatdozent until he was called to the University of Leipzig in 1926 as an extraordinarius professor of mathematical physics. In 1926, Wentzel,〔Gregor Wentzel. ''Eine Verallgemeinerun der Quantenbedingungen für die Zwecke der Wellenmechanik'', ''Z. Physik.'' 38 518-529 (1926). As cited in Mehra, 2001, Volume 5, Part 2, p. 961.〕 Hendrik Kramers,〔H. A. Kramers. ''Wellenmechanik und halbzahlige Quantisierung'', ''Z. Physik.'' 39 828-840 (1926). As cieted in Mehra, 2001, Volume 5, Part 2, p. 920.〕 and Léon Brillouin〔Léon Brillouin. ''La mécanique ondulatoire de Schrödinger; une méthode générale de resolution par approximations successives'', ''Comptes rendus'' (Paris) 183 24-26 (1926). As cieted in Mehra, 2001, Volume 5, Part 2, p. 882.〕 independently developed what became known as the Wentzel–Kramers–Brillouin approximation, also known as the ''WKB approximation'', ''classical approach'', and ''phase integral method''.〔Schiff. 1968, p. 269.〕 He became ordinarius professor in the Chair for Theoretical Physics, at the University of Zurich, when he succeeded Erwin Schrödinger, in 1928, the same year Wolfgang Pauli was appointed to the ETH Zurich. Together, Wentzel and Pauli built the reputation of Zurich as a center for theoretical physics. In 1948, Wentzel took a professorship at the University of Chicago. He retired in 1970 and went to spend his last years in Ascona, Switzerland. In 1975, he was awarded the Max Planck Medal. 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「Gregor Wentzel」の詳細全文を読む スポンサード リンク 翻訳と辞書 : 翻訳のためのインターネットリソース Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.