Hans-Jürgen Borchers

Hans-Jürgen Borchers (born January 24, 1926 in Hamburg ; † September 10, 2011 in Göttingen ) was a German theoretical physicist who mainly worked on quantum field theory , using the rigorous methods of mathematical physics .

Life

Borchers received his doctorate in 1956 under Wilhelm Lenz at the University of Hamburg with the work investigations into field equations of different spins and their energy eigenvalues ​​in the Coulomb field . From 1961 to 1963 he was at the Institute for Advanced Study in Princeton . In 1966 he succeeded Friedrich Hund as Professor of Theoretical Physics at the Georg-August University in Göttingen . In 1991 he retired.

The Borchers classes in quantum field theory come from him . These are equivalence classes of local fields. Borchers showed that two fields , which are “relatively local” to a local field, are also relatively local to one another and thus local. Such fields which are relatively local to one another and have the same time evolution operator U have the same S matrix. ${\displaystyle {\phi }_{2}}$ ${\displaystyle {\phi }_{3}}$ ${\displaystyle {\phi }_{1}}$

In 1995 he received the Max Planck Medal . He was a member of the Göttingen Academy of Sciences .

Jakob Yngvason was one of his students .

literature

• Karl-Henning Rehren : Obituary for Hans-Jürgen Borchers. In: Physics Journal . Vol. 10 (2011), H. 11, p. 52 ( PDF ).

Web links

• Borchers at the Mathematics Genealogy Project
• Author profile in the database zbMATH

Remarks

1. ↑ On the multiplicity of the interpolating fields to a local S-matrix , Nuovo Cimento Vol. 15, 1960, p. 784.
2. ↑ ^{a b} Two fields are called relatively local if they commute for space-like distances.