Karl-Henning Rehren

Karl-Henning Rehren
Karl-Henning Rehren (right) with Klaus Fredenhagen (middle) and Roberto Longo (left), Oberwolfach 2002
Born	1956 Celle, West Germany
Nationality	German
Alma mater	University of Heidelberg University of Freiburg
Known for	Rehren duality
Scientific career
Fields	Physics
Institutions	Free University of Berlin Utrecht University University of Hamburg Osnabrück University University of Göttingen
Thesis	Zur invarianten Quantisierung des relativistischen freien Strings (1984)
Doctoral advisor	Klaus Pohlmeyer

Karl-Henning Rehren (born 1956 in Celle) is a German physicist who focuses on algebraic quantum field theory.

Rehren studied physics in Heidelberg, Paris and Freiburg. In Freiburg he received his PhD (advisor Klaus Pohlmeyer) in 1984. Habilitation 1991 in Berlin. Since 1997 he teaches physics in Göttingen.^[1]

He became notable outside his field, especially among string theorists, in 1999 when he discovered the Algebraic holography (also called Rehren duality), a relation between quantum field theories AdS_d+1 and conformal quantum field theories on d-dimensional Minkowski spacetime, which is similar in scope to the Holographic principle. This work has no direct relation to the more well known Maldacena duality, but refers to the more general statement of the AdS/CFT correspondence by Edward Witten. It is generally accepted that the relation found by Rehren does not provide a proof for Witten's conjecture and is thus considered an independent result.

• Fredenhagen, Klaus; Rehren, Karl-Henning; Seiler, Erhard (2007). "Quantum Field Theory: Where We Are". Approaches to Fundamental Physics. Lecture Notes in Physics. Vol. 721. pp. 61–87. arXiv:hep-th/0603155. doi:10.1007/978-3-540-71117-9_4. ISBN 978-3540711179. S2CID 18249741. {{cite book}}: |journal= ignored (help)
• Rehren, Karl-Henning (2000). "Algebraic holography". Annales Henri Poincaré. 1 (4): 607–623. arXiv:hep-th/9905179. Bibcode:2000AnHP....1..607R. doi:10.1007/PL00001009. S2CID 5966399.

• Karl-Henning Rehren at the Mathematics Genealogy Project.
• Karl-Henning Rehren at zbMATH.
• Author page on INSPIRE-HEP
• "Göttingen professor page of Kerl-Henning Rehren". University of Göttingen. Retrieved February 16, 2021.
• "Personal Homepage". University of Göttingen. 7 April 2000. Retrieved February 16, 2021.