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X-ray wave theory
- He introduced the second quantum number, azimuthal quantum number, and the third quantum number, magnetic quantum number. [ 2 ] He also introduced the fine-structure constant and pioneered X-ray wave theory.
en.wikipedia.org/wiki/Arnold_Sommerfeld
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Arnold Johannes Wilhelm Sommerfeld, ForMemRS [ 1 ] (German: [ˈzɔmɐˌfɛlt]; 5 December 1868 – 26 April 1951) was a German theoretical physicist who pioneered developments in atomic and quantum physics, and also educated and mentored many students for the new era of theoretical physics.
As professor of theoretical physics at Munich (1906–31), he did his most important work. His investigations of atomic spectra led him to suggest that, in the Bohr model of the atom , the electrons move in elliptical orbits as well as circular ones.
- The Editors of Encyclopaedia Britannica
Nov 16, 2023 · Sommerfeld's most notable contribution to theoretical physics is evident in his development and expansion of quantum theory. Working on the foundations laid down by Niels Bohr, Sommerfeld introduced elliptical and asymmetric orbits into the atomic model, significantly improving the accuracy of spectral predictions.
Nov 24, 2013 · One major step of his career was to succeed Ludwig Boltzmann (1844–1906) as professor of theoretical physics at the University of Munich in 1906. He worked there for the rest of his life, creating a leading school of theoretical physics.
- Andre K. T. Assis
- assis@ifi.unicamp.br
- 2014
Nov 20, 2014 · Sommerfeld was the teacher and mentor of a large number of exceptional theoretical physicists who studied with him either as doctoral or post-doctoral students 1; and among these, Peter Debye, Max von Laue, Wolfgang Pauli, Werner Heisenberg, Linus Pauling and Hans Bethe became Nobel laureates.
- S. S. Schweber
- schweber@fas.harvard.edu
- 2015
Sommerfeld developed his own version of Niels Bohr’s famous atomic model by incorporating elliptical orbits in addition to circular paths for electrons to follow, combining classical physics and the newly emerging quantum theory.
Jul 26, 2023 · Sommerfeld’s work in mathematics led to important contributions in partial differential equations in physics and the theory of gyroscopes. He then turned to the study of atomic spectra.
