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 .
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.
Jakob Yngvason was one of his students .
- Karl-Henning Rehren : Obituary for Hans-Jürgen Borchers. In: Physics Journal . Vol. 10 (2011), H. 11, p. 52 ( PDF ).
- On the multiplicity of the interpolating fields to a local S-matrix , Nuovo Cimento Vol. 15, 1960, p. 784.
- Two fields are called relatively local if they commute for space-like distances.
|BRIEF DESCRIPTION||German physicist|
|DATE OF BIRTH||January 24, 1926|
|PLACE OF BIRTH||Hamburg|
|DATE OF DEATH||September 10, 2011|
|Place of death||Goettingen|