Article ID: CBB000933680

Zweideutigkeit about “Zweideutigkeit”: Sommerfeld, Pauli, and the Methodological Origins of Quantum Mechanics (2009)


Seth, Suman (Author)

Studies in History and Philosophy of Science Part B: Studies in History and Philosophy of Modern Physics
Volume: 40
Pages: 303--315

Publication Date: 2009
Edition Details: Part of a special Issue: Proceedings from the HQ2 Conference
Language: English

In early 1925, Wolfgang Pauli (1900--1958) published the paper for which he is now most famous and for which he received the Nobel Prize in 1945. The paper detailed what we now know as his exclusion principle. This essay situates the work leading up to Pauli's principle within the traditions of the Sommerfeld School, led by Munich University's renowned theorist and teacher, Arnold Sommerfeld (1868--1951). Offering a substantial corrective to previous accounts of the birth of quantum mechanics, which have tended to sideline Sommerfeld's work, it is suggested here that both the method and the content of Pauli's paper drew substantially on the work of the Sommerfeld School in the early 1920s. Part One describes Sommerfeld's turn away from a faith in the power of model-based (modellmässig) methods in his early career towards the use of a more phenomenological emphasis on empirical regularities (Gesetzmässigkeiten) during precisely the period that both Pauli and Werner Heisenberg (1901--1976), among others, were his students. Part two delineates the importance of Sommerfeld's phenomenology to Pauli's methods in the exclusion principle paper, a paper that also eschewed modellmässig approaches in favour of a stress on Gesetzmässigkeiten. In terms of content, a focus on Sommerfeld's work reveals the roots of Pauli's understanding of the fundamental Zweideutigkeit (ambiguity) involving the quantum number of electrons within the atom. The conclusion points to the significance of these results to an improved historical understanding of the origin of aspects of Heisenberg's 1925 paper on the Quantum-theoretical Reformulation (Umdeutung) of Kinematical and Mechanical Relations.

Included in

Article Dongen, Jeroen van; Dieks, Dennis; Uffink, Jos; Kox, A. J. (2009) On the History of the Quantum: Introduction to the HQ2 Special Issue. Studies in History and Philosophy of Science Part B: Studies in History and Philosophy of Modern Physics (p. 277). unapi

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Authors & Contributors
Seth, Suman
Bacciagaluppi, Guido
Eckert, Michael
Hilgevoord, Jan
Crull, Elise
Ozawa, Takeshi
Studies in History and Philosophy of Science Part B: Studies in History and Philosophy of Modern Physics
Berichte zur Wissenschaftsgeschichte
Studies in History and Philosophy of Science
Historia Scientiarum: International Journal of the History of Science Society of Japan
Science and Education
MIT Press
Cambridge University Press
Oxford University Press
University of Western Ontario (Canada)
University of Notre Dame
Springer International Publishing
Quantum mechanics
Philosophy of science
Methodology of science; scientific method
Scientific communities; interprofessional relations
Controversies and disputes
Sommerfeld, Arnold Johannes Wilhelm
Bohr, Niels Henrik David
Heisenberg, Werner
Pauli, Wolfgang Ernst
Von Neumann, John
Schrödinger, Erwin
Time Periods
20th century, early
19th century
Brussels (Belgium)
Weimar Republic (1919-1933)
Munich (Germany)
Solvay Conferences
University of Tokyo
Kyōto Daigaku (Kyoto University)
Munich. Universität

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