Claude Cohen-Tannoudji

Claude Cohen-Tannoudji
Claude Cohen-Tannoudji
Born	(1933-04-01) 1 April 1933 Constantine, Algeria
Nationality	French
Fields	Physics
Institutions	Ecole normale supérieure
Doctoral advisor	Alfred Kastler
Doctoral students	Serge Haroche Jean Dalibard
Notable awards	Young Medal and Prize (1979) Lilienfeld Prize (1992) Matteucci Medal (1994) Harvey Prize (1996) Nobel Prize in Physics (1997)
Spouse	Jacqueline Veyrat (m. 1958)
Children	3

Claude Cohen-Tannoudji (born 1 April 1933) is a French physicist and Nobel Laureate. He shared the 1997 Nobel Prize in Physics with Steven Chu and William Daniel Phillips for research in methods of laser cooling and trapping atoms. He is still an active researcher, working at the École Normale Supérieure in Paris.

Early life

Cohen-Tannoudji was born in Constantine, Algeria, to Algerian Jewish parents Abraham Cohen-Tannoudji and Sarah Sebbah. When describing his origins Cohen-Tannoudji said: "My family, originally from Tangier, settled in Tunisia and then in Algeria in the 16th century after having fled Spain during the Inquisition. In fact, our name, Cohen-Tannoudji, means simply the Cohen family from Tangiers. The Algerian Jews obtained the French citizenship in 1870 after Algeria became a French colony in 1830."

After finishing secondary school in Algiers in 1953, Cohen-Tannoudji left for Paris to attend the École normale supérieure. His professors included Henri Cartan, Laurent Schwartz, and Alfred Kastler.

In 1958 he married Jacqueline Veyrat, a high school teacher, with whom he has three children. His studies were interrupted when he was conscripted into the army, in which he served for 28 months (longer than usual because of the Algerian War). In 1960 he resumed working toward his doctorate, which he obtained at the end of 1962.

Career

Claude Cohen-Tannoudji in 2010

After his dissertation, he started teaching quantum mechanics at the University of Paris. His lecture notes were the basis of the popular textbook, Mécanique quantique, which he wrote with two of his colleagues. He also continued his research work on atom-photon interactions, and his research team developed the model of the dressed atom.

In 1973, he became a professor at the Collège de France. In the early 1980s, he started to lecture on radiative forces on atoms in laser light fields. He also formed a laboratory there with Alain Aspect, Christophe Salomon, and Jean Dalibard to study laser cooling and trapping. He even took a statistical approach to laser cooling with the use of stable distributions.

His work there eventually led to the Nobel Prize in physics in 1997 "for the development of methods to cool and trap atoms with laser light", shared with Steven Chu and William Daniel Phillips. Cohen-Tannoudji was the first physics Nobel prize winner born in an Arab country.

Awards

Claude Cohen-Tannoudji, UNESCO, 2011

• 1979 - Young Medal and Prize, for distinguished research in the field of optics.
• 1993 - Charles Hard Townes Award
• 1997 - Nobel Prize, for the development of methods to cool and trap atoms with laser light.

Selected works

The main works of Cohen-Tannoudji are given in his homepage.

• Claude Cohen-Tannoudji, Bernard Diu, and Frank Laloë. 1973. Mécanique quantique. 2 cols. Collection Enseignement des Sciences. Paris. ISBN 2-7056-5733-9 (Quantum Mechanics. Vol. I & II, 1991. Wiley, New-York, ISBN 0-471-16433-X & ISBN 0471164356).
• Claude Cohen-Tannoudji, Gilbert Grynberg and Jacques Dupont-Roc. Introduction à l'électrodynamique quantique. (Photons and Atoms: Introduction to Quantum Electrodynamics. 1997. Wiley. ISBN 0471184330)
• Claude Cohen-Tannoudji, Gilbert Grynberg and Jacques Dupont-Roc, Processus d'interaction photons-atomes. (Atoms-Photon Interactions : Basic Processes and Applications. 1992. Wiley, New-York. ISBN 0471625566)
• Claude Cohen-Tannoudji. 2004. Atoms in Electromagnetic fields. 2nd Edition. World Scientific. Collection of his most important papers.

See also

• List of Jewish Nobel laureates

External links

• His research group
• His lecture notes (in French)
• Autobiography for the Nobel Prize ceremony (on which this article is based)