The Bohr–Sommerfeld model (also known as the Sommerfeld model or Bohr–Sommerfeld theory) was an extension of the Bohr model to allow elliptical orbits...

physics, the Bohr model or Rutherford–Bohr model was the first successful model of the atom. Developed from 1911 to 1918 by Niels Bohr and building on...

premised on Arnold Sommerfeld's enhancements to the Bohr model of the atom. The main tool of the old quantum theory was the Bohr–Sommerfeld quantization condition...

of these shortcomings were resolved by Arnold Sommerfeld's modification of the Bohr model. Sommerfeld introduced two additional degrees of freedom, allowing...

The Sommerfeld model can refer to: Bohr–Sommerfeld model Drude–Sommerfeld model This disambiguation page lists articles associated with the title Sommerfeld...

surface wave Bohr–Sommerfeld model Sommerfeld–Wilson quantization Drude–Sommerfeld model Gamow–Sommerfeld factor Grimm–Sommerfeld rule Orr–Sommerfeld equation...

This gave a mathematical foundation for stationary states of the Bohr-Sommerfeld model of the atom. The second seed was Albert Einstein's quantum derivation...

S2CID 225215678. Kragh, Helge (2012). "The Bohr–Sommerfeld theory". Niels Bohr and the quantum atom: The Bohr model of atomic structure 1913–1925. Oxford University...

The shell terminology comes from Arnold Sommerfeld's modification of the 1913 Bohr model. During this period Bohr was working with Walther Kossel, whose...

(linear) Stark effect in hydrogen is in agreement with both the old Bohr–Sommerfeld model and the quantum-mechanical theory of the atom, higher-order corrections...

corrections encountered increasing difficulties; for example, the Bohr–Sommerfeld model could not be extended from hydrogen to the next simplest case, the...

Prize in Physics in 1922. Bohr was also a philosopher and a promoter of scientific research. Bohr developed the Bohr model of the atom, in which he proposed...

Balmer series Hydrogen line Rydberg–Ritz combination principle Bohr atom Bohr–Sommerfeld model See: Rydberg, J.R. (1889). "Researches sur la constitution...

1923 at Munich under Sommerfeld. In June 1922, Sommerfeld took Heisenberg to Göttingen to attend the Bohr Festival, because Sommerfeld had a sincere interest...

deriving the model, which was the only one available at that time. By replacing the statistics with the correct Fermi Dirac statistics, Sommerfeld significantly...

6×10−10. The constant was named by Arnold Sommerfeld, who introduced it in 1916 when extending the Bohr model of the atom. α quantified the gap in the...

Sommerfeld, who combined the classical Drude model with quantum mechanical Fermi–Dirac statistics and hence it is also known as the Drude–Sommerfeld model...

number 107 Bohr–Van Leeuwen theorem Bohr–Kramers–Slater theory Bohr–Einstein debates Sommerfeld–Bohr theory Bohr–Sommerfeld quantization Bohr's complementarity...

co-discovery of the Sommerfeld–Wilson quantization rules (1915), a generalization of Bohr's atomic model, introduction of the Sommerfeld fine-structure constant...

approximately constant). A more accurate description may be used with the Bohr–Sommerfeld model of the atom. The theoretical limit for the wavelength in the Pickering-Fowler...

classical physics cannot account for diamagnetism, and Arnold Sommerfeld's extension of the Bohr model to include special-relativistic effects. In the mid-1920s...

This pre-1925 period marked the old quantum theory built upon the Bohr-Sommerfeld model of the atom with its classical elliptical electron orbits. During...

the so-called "old quantum theory" developed by physicists including Bohr, Sommerfeld, and Ishiwara, in which particle trajectories exist but are hidden...

completely informative description. Complementarity as a physical model derives from Niels Bohr's 1927 lecture during the Como Conference in Italy, at a scientific...

In addition to the model of the atom, Niels Bohr also proposed a model of the chemical bond. He proposed this model first in the article "Systems containing...

no such rules for excitation by collision processes. The Bohr model, proposed by Niels Bohr in 1913, is a revolutionary theory describing the structure...

Zeeman on the Moon is named in his honour. Atom and Atomic Theory Bohr–Sommerfeld model Fresnel drag coefficient Light-dragging effects "Fellows of the...

interpretation of atomic spectra. Kossel worked with Bohr and Sommerfeld on the Bohr-Sommerfeld model of the atom. In 1916, Kossel put forth his theory of...

de Donder, P. Zeeman, P. Weiss, A. Sommerfeld, M. Curie, P. Langevin, A. Einstein, O. Richardson, B. Cabrera, N. Bohr, W. J. De Haas; 2nd row: E. Herzen...

formula. As Bohr notes in his subsequent Nobel lecture, the next step was taken by Arnold Sommerfeld in 1915. Sommerfeld's atomic model added a second...