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|Died||5 January 2016 (aged 93)|
|Alma mater||University of Stuttgart|
|Known for||Haag–Kastler axioms|
Haag–Ruelle scattering theory
|Awards||Max Planck medal (1970),|
International Association of Mathematical Physics (1997)
|Institutions||Max Planck Institute,|
University of Marseille,
University of Illinois at Urbana-Champaign,
University of Hamburg
|Thesis||Die korrespondenzmäßige Methode in der Theorie der Elementarteilchen|
|Doctoral advisor||Fritz Bopp|
Rudolf Haag (17 August 1922 – 5 January 2016) was a German physicist. He was best known for his contributions to the algebraic formulation of axiomatic quantum field theory (QFT), namely the Haag–Kastler axioms, and a central no-go theorem in QFT, Haag's theorem, which demonstrates the nonexistence of a unitary time-evolution operator in the interaction picture.
Haag was born in Tübingen, Germany. He studied Physics at Technische Hochschule Stuttgart, now the University of Stuttgart, from 1948 to 1954 and then worked on his dissertation in Munich and defended in 1951. His supervisor was Fritz Bopp.
From 1956 to 1957 he was at Max Planck Institute in Göttingen. After doing one year each as visiting professor at Princeton University and University of Marseille, he was professor of physics at the University of Illinois at Urbana-Champaign for six years until 1966.
After that and until his retirement he held a chair for theoretical physics at the University of Hamburg.
In 1965 he founded the journal Communications in Mathematical Physics, which he guided as Chief Editor for eight years.
It was reported by SZ Gedenken that Haag died on 5 January 2016 at the age of 93.
- Obituary (13 January 2016)
- Rudolf Haag at the Mathematics Genealogy Project
- Rehren, Karl-Henning; Jaffe, Arthur (22 March 2016). "Obituary: Rudolf Haag". Physics Today (Daily Edition).
- An algebraic approach to quantum field theory by Rudolf Haag, Daniel Kastler (Illinois U., Urbana), J.Math.Phys.5:848-861,1964[permanent dead link]
- "Rudolf Haag" (in German). SZ Gedenken. Retrieved 17 January 2016.
- Kastler, Daniel (2003): "Rudolf Haag - Eighty Years". Communications in Mathematical Physics (ISSN 0010-3616), Vol 237, No 1, pp 3–6. (doi:10.1007/s00220-003-0829-1)
- A picture of Rudolf Haag at II. Institute for Theoretical Physics, Hamburg University (Photographer: Ralf D. Tscheuschner, a pupil of Haag)