What is Rudolf Haag?
[[File:Rudolf Haag.jpg|thumb|Rudolf Haag]] '''Rudolf Haag''' (17 August 1922 &ndash; 5 January 2016) was a [[Germans|German]] [[theoretical physicist]]. He was born in [[Tübingen]], [[Weimar Republic|Germany]].<ref>{{cite web|title=Rudolf Haag|url=http://trauer.sueddeutsche.de/Traueranzeige/Rudolf-Haag-1922|publisher=SZ Gedenken|access-date=17 January 2016|language=de}}</ref> ==Works== He was best known for his works to the algebraic formulation of [[axiom]]atic [[quantum field theory]], namely the [[Haag-Kastler axioms]]<ref>* ''An algebraic approach to quantum field theory'' by Rudolf Haag, Daniel Kastler (Illinois U., Urbana), [http://www.slac.stanford.edu/spires/find/hep/www?j=JMAPA,5,848 J.Math.Phys.5:848-861,1964] {{Webarchive|url=https://archive.today/20120805150256/http://inspirehep.net/search?p=find+j+jmapa,5,848 |date=2012-08-05 }}</ref> , and a central [[no-go theorem]] in QFT, [[Haag's theorem]], which demonstrates the nonexistence of a [[Unitary operator|unitary]] [[time-evolution operator]] in the [[interaction picture]]. In 1965 he founded the journal [[Communications in Mathematical Physics]], which he guided as Chief Editor for eight years. He was awarded the [[Max Planck medal]] in 1970 and the [[Henri Poincaré Prize]] of the [[International Association of Mathematical Physics]] in 1997. Haag died on 5 January 2016 at the age of 93. ==References== {{reflist}} ==Other websites== * [http://unith.desy.de/people/allmembers/haag/ A picture of Rudolf Haag at II. Institute for Theoretical Physics, Hamburg University] {{Webarchive|url=https://web.archive.org/web/20160302091658/http://unith.desy.de/people/allmembers/haag/ |date=2016-03-02 }} (Photographer: Ralf D. Tscheuschner, a pupil of Haag) {{authority control}} {{DEFAULTSORT:Haag, Rudolf}} [[Category:1922 births]] [[Category:2016 deaths]] [[Category:German academics]] [[Category:German theoretical physicists]] [[Category:People from Tübingen]] {{Bio-stub}}