16 Facts About Rudolf Haag

Rudolf Haag was a German theoretical physicist, who mainly dealt with fundamental questions of quantum field theory.

Rudolf Haag was one of the founders of the modern formulation of quantum field theory and he identified the formal structure in terms of the principle of locality and local observables.

Rudolf Haag made important advances in the foundations of quantum statistical mechanics.

Rudolf Haag was born on 17 August 1922, in Tubingen, a university town in the middle of Baden-Wurttemberg.

Rudolf Haag's father, Albert Haag, was a teacher of mathematics at a Gymnasium.

Rudolf Haag was interned as an enemy alien and spent the war in a camp of German civilians in Manitoba.

Rudolf Haag became a professor of Physics at the University of Illinois Urbana-Champaign in 1960.

Rudolf Haag developed an interest in music at an early age.

Rudolf Haag began learning the violin, but later preferred the piano, which he played almost every day.

In 1948, Rudolf Haag married Kathe Fues, with whom he had four children, Albert, Friedrich, Elisabeth, and Ulrich.

Rudolf Haag died on 5 January 2016, in Fischhausen-Neuhaus, in southern Bavaria.

At the beginning of his career, Rudolf Haag contributed significantly to the concepts of quantum field theory, including Rudolf Haag's theorem, from which follows that the interaction picture of quantum mechanics does not exist in quantum field theory.

Together with Daniel Kastler and Ewa Trych-Pohlmeyer, Rudolf Haag succeeded in deriving the KMS condition from the stability properties of thermal equilibrium states.

Rudolf Haag had a certain mistrust towards what he viewed as speculative developments in theoretical physics but occasionally dealt with such questions.

In 1970 Rudolf Haag received the Max Planck Medal for outstanding achievements in theoretical physics and in 1997 the Henri Poincare Prize for his fundamental contributions to quantum field theory as one of the founders of the modern formulation.

Since 1980 Rudolf Haag was a member of the German National Academy of Sciences Leopoldina and since 1981 of the Gottingen Academy of Sciences.