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Harry Lehmann (21 March 1924 in
Güstrow Güstrow (; la, Gustrovium) is a town in Mecklenburg-Vorpommern, Germany. It is capital of the Rostock district; Rostock itself is a district-free city and regiopolis. It has a population of 28,999 (2020) and is the seventh largest town in Me ...
22 November 1998 in
Hamburg (male), (female) en, Hamburger(s), Hamburgian(s) , timezone1 = Central (CET) , utc_offset1 = +1 , timezone1_DST = Central (CEST) , utc_offset1_DST = +2 , postal ...
) was a German
physicist A physicist is a scientist who specializes in the field of physics, which encompasses the interactions of matter and energy at all length and time scales in the physical universe. Physicists generally are interested in the root or ultimate caus ...
.


Biography

Lehmann studied physics at
Rostock Rostock (), officially the Hanseatic and University City of Rostock (german: link=no, Hanse- und Universitätsstadt Rostock), is the largest city in the German state of Mecklenburg-Vorpommern and lies in the Mecklenburgian part of the state, c ...
and the
Humboldt-Universität zu Berlin Humboldt-Universität zu Berlin (german: Humboldt-Universität zu Berlin, abbreviated HU Berlin) is a German public research university in the central borough of Mitte in Berlin. It was established by Frederick William III on the initiative o ...
. In 1952 he worked at the Max-Planck-Institut in
Göttingen Göttingen (, , ; nds, Chöttingen) is a college town, university city in Lower Saxony, central Germany, the Capital (political), capital of Göttingen (district), the eponymous district. The River Leine runs through it. At the end of 2019, t ...
, and spent a year in
Copenhagen Copenhagen ( or .; da, København ) is the capital and most populous city of Denmark, with a proper population of around 815.000 in the last quarter of 2022; and some 1.370,000 in the urban area; and the wider Copenhagen metropolitan ar ...
and from 1956 worked in
Hamburg (male), (female) en, Hamburger(s), Hamburgian(s) , timezone1 = Central (CET) , utc_offset1 = +1 , timezone1_DST = Central (CEST) , utc_offset1_DST = +2 , postal ...
. In 1967 he won the
Max Planck Medal The Max Planck medal is the highest award of the German Physical Society , the world's largest organization of physicists, for extraordinary achievements in theoretical physics. The prize has been awarded annually since 1929, with few exceptions, ...
for extraordinary achievements in
theoretical physics Theoretical physics is a branch of physics that employs mathematical models and abstractions of physical objects and systems to rationalize, explain and predict natural phenomena. This is in contrast to experimental physics, which uses experim ...
. It is awarded annually by the
Deutsche Physikalische Gesellschaft The German Physical Society (German: , DPG) is the oldest organisation of physicists. The DPG's worldwide membership is cited as 60,547, as of 2019, making it the largest physics society in the world. It holds an annual conference () and multiple ...
(german: German Physical Society). The 'L' in the
LSZ reduction formula In quantum field theory, the LSZ reduction formula is a method to calculate ''S''-matrix elements (the scattering amplitudes) from the time-ordered correlation functions of a quantum field theory. It is a step of the path that starts from the L ...
refers to Harry Lehmann.


See also

*
Källén–Lehmann spectral representation The Källén–Lehmann spectral representation gives a general expression for the (time ordered) two-point function of an interacting quantum field theory as a sum of free propagators. It was discovered by Gunnar Källén and Harry Lehmann ind ...


Notes


References

*Karl von Meyenn (ed.), ''Wolfgang Pauli. Wissenschaftlicher Briefwechsel'', Vol. IV, Part III, Briefwechsel 1955/56, Springer Verlag, p. 68ff,
Wolfhart Zimmermann Wolfhart Zimmermann (17 February 1928 – 18 September 2016) was a German theoretical physicist. Zimmermann attained a doctorate in 1950 at Freiburg im Breisgau in topology ("Eine Kohomologietheorie topologischer Räume"). Biography Zimmermann w ...
''Harry Lehmann, der Feldverein und die Anfänge der axiomatischen Quantenfeldtheorie'' (Hamburg 1999) 1924 births 1998 deaths 20th-century German physicists People from Güstrow Winners of the Max Planck Medal University of Hamburg faculty University of Rostock alumni Humboldt University of Berlin alumni {{germany-scientist-stub