Gunnar Källén

| birth_place = Kristianstad, Sweden | death_date = | death_place = Hanover, Germany | known_for = Källén–Lehmann representation
Källén function | fields = Theoretical physics | workplaces = NORDITA
Bohr Institute
Lund University | alma_mater = Lund University | thesis_title = Formal integration of the equations of quantum theory in the Heisenberg representation | thesis_year = 1950 | academic_advisors = | doctoral_students = }} Anders Olof Gunnar Källén (13 February 1926 – 13 October 1968) was a Swedish theoretical physicist and professor at Lund University, known for his work on correlation functions in quantum field theory. He died at the age of 42 as a result of a plane crash. Provided by Wikipedia