Erwin Fues

Erwin Richard Fues (January 17, 1893 in Stuttgart, Germany – 17 January 1970, Germany), was a German theoretical physicist who made contributions to atomic physics and molecular physics, quantum wave mechanics, and solid-state physics.

During the period 1912 to 1914, Fues studied at the University of Berlin and then the University of Munich. He served in the military in 1914 to circa 1915, and then attended the University of Tübingen from 1916 to 1918. During 1918, he became a student of Arnold Sommerfeld and he received the doctor rerum naturalium from the University of Munich in 1920. From 1922 he did postgraduate work at the Stuttgart Technische Hochschule, under Paul Peter Ewald, also a former student of Arnold Sommerfeld, and he completed his Habilitation in 1924. At Stuttgart he served as a Privatdozent and assistant to Ewald until 1929, during which time he worked on atomic and molecular structure and spectroscopy based on the Sommerfeld-Bohr theory. During his tenure under Ewald, he was absent from 1925 to 1927, when as an International Education Board fellow, he was first an assistant to Erwin Schrödinger at the University of Zurich, and then a research assistant at the University of Copenhagen at Niels Bohr’s Institute of Theoretical Physics. At that time three major centers for the development of quantum mechanics were the Theoretical Physics Institute at the University of Munich, under Arnold Sommerfeld, the Institute of Theoretical Physics at the University of Göttingen, under Max Born, and the Institute of Theoretical Physics, under Niels Bohr.

...
Wikipedia