Constantin Piron (1932, Paris - 9 May 2012,Lausanne) was a Belgian physicist[1] who worked for most of his career in Switzerland.[2]
In 1963 Piron earned his doctor of science degree from theUniversity of Lausanne under the direction ofErnst Stueckelberg andJosef-Maria Jauch with a thesis onquantum logic, "Axiomatique quantique". He developed Jauch's methods (called the Geneva approach) for the foundations ofquantum mechanics.
Piron's theorem (1964)[3] is a famous representation theorem for quantum lattices.[citation needed]
He was appointed assistant professor in the physics department of theUniversity of Geneva in 1969 and professor ordinarius in 1974. He retired in 2000.