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He became one of the founders of quantum mechanics; some of his contributions included co-discovery of the Sommerfeld–Wilson quantization rules (1915), a generalization of Bohr's atomic model, introduction of the Sommerfeld fine-structure constant (1916), co-discovery with Walther Kossel of the Sommerfeld–Kossel displacement law (1919), [41 ...
Arnold Sommerfeld (born Dec. 5, 1868, Königsberg, Prussia [now Kaliningrad, Russia]—died April 26, 1951, Munich) was a German physicist whose atomic model permitted the explanation of fine-structure spectral lines.
- The Editors of Encyclopaedia Britannica
Nov 16, 2023 · Expanding on the works of Paul Drude and Hendrik Lorentz, Sommerfeld introduced the theory of free electrons in metals, advancing our understanding of electrical conductivity in solids. His model, known as Sommerfeld's theory, had a significant impact on solid-state physics and electronics.
Arnold Sommerfeld is one of the pioneers of quantum and atomic physics. He was a brilliant German theoretical physicist who also educated many students in physics. He is known for introducing the azimuthal quantum number (2nd quantum number) and the spin quantum number (4th quantum number).
Nov 20, 2014 · The most notable experiment carried out in Sommerfeld's institute was the discovery of the diffraction of X-rays by crystals. It is to be noted that Sommerfeld was one of the youngest physicists invited to the 1911 Solvay Conference.
- S. S. Schweber
- schweber@fas.harvard.edu
- 2015
Sep 1, 2010 · Sommerfeld is best known for his 1916 relativistic generalization of Bohr’s model of the atom, his introduction of the fine-structure constant, and his analysis of the effects of electric and magnetic fields on atomic spectra.
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Nov 24, 2013 · It was not by chance that several years later Sommerfeld characterized “Laue’s discovery” as the “most important scientific event” in the history of his institute. The biography also describes in great detail his many trips abroad to countries like India, China, Japan and the USA.
