Ernst Stueckelberg

Ernst Carl Gerlach Stueckelberg (baptised as Johann Melchior Ernst Karl Gerlach Stückelberg, full name after 1911: Baron Ernst Carl Gerlach Stueckelberg von Breidenbach zu Breidenstein und Melsbach; 1 February 1905 – 4 September 1984) was a Swiss mathematician and physicist, regarded as one of the most eminent physicists of the 20th century.

This article is about the physicist. For the artist (his grandfather), see Ernst Stückelberg (painter).
Ernst Stueckelberg v. Breidenbach
Born(1905-02-01)1 February 1905
Basel
Died4 September 1984(1984-09-04) (aged 79)
Geneva
Known forStueckelberg action
Feynman–Stueckelberg interpretation
Discovery of the renormalization group
Semi-detailed balance
Landau-Zener formula
AwardsMax Planck Medal (1976)
Scientific career
Doctoral advisorAugust Hagenbach
Doctoral studentsMarcel Guénin
Constantin Piron
André Petermann

Despite making key advances in theoretical physics, including the exchange particle model of fundamental forces, causal S-matrix theory, and the renormalization group, his idiosyncratic style and publication in minor journals led to his work not being widely recognized until the mid-1990s.

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