D'Espagnat obtained his Ph.D. from the
Sorbonne at the
Institut Henri Poincaré under the guidance of
Louis de Broglie. He was a researcher at the Centre National de Recherche Scientifique
CNRS, 1947–1957. During this period he also worked with
Enrico Fermi at the
University of Chicago in Chicago, 1951–1952, and on a research project led by
Niels Bohr at the
University of Copenhagen, 1953–1954. He then pursued his scientific career as the first
theoretical physicist at the European Organization for Nuclear Research (
CERN) in Geneva, 1954-59. From 1959 until his retirement in 1987, D'Espagnat was a senior lecturer at the Faculty of Sciences at the
Sorbonne University. He was director of the Laboratory of
Theoretical Physics and Elementary Particles at the
University of Paris XI (Orsay), 1980-87. He was a visiting professor at the
University of Texas at Austin in 1977, and at the
University of California - Santa Barbara in 1984. He had been a member of the Brussels Académie Internationale de Philosophie des Sciences (AIPS (aka
International Academy of Philosophy of Science) since 1975, and of the French
Academy of Moral and Political Sciences since 1996. His experiments with
Bell's inequalities to further his concept of veiled reality won the attention of the
John Templeton Foundation. D'Espagnat became the 2009
Templeton Prize winner in March for his "work which acknowledges that science cannot fully explain 'the nature of being.'" ==Philosophical outlook==