Claude Cohen-Tannoudji’s profile picture

Claude Cohen-Tannoudji

Claude Cohen-Tannoudji’s profile picture
Net worth 2018: $600 Thousand
Industry: Scientists
Residence: Constantine, Algeria
Country: French
BirthDay: 1 April 1933
Sigh: Taurus
Height: 1.70 m

Claude Cohen-Tannoudji was bornon 1 April 1933 in Constantine, Algeria, French, is Physicist. Claude Cohen-Tannoudji is a French physicist who won a share of the 1997 Nobel Prize in Physics. Known for research in methods of laser cooling and trapping atoms, he collaborated with his colleagues at the École Normale Supérieure (ENS) to build on the works of fellow physicists Steven Chu and William Daniel Phillips which led to new mechanisms for cooling and trapping atoms with laser light. Born in Algeria (which was then part of France) in the early 1930s, he grew up during a period of political turmoil in Europe and the French colonies. Fortunately his family was saved from persecution at the hands of the Nazis due to the timely arrival of the Americans in Algeria in 1942. After completing his high school, he left Algeria for Paris where he was admitted to the Ecole Normale Supérieure (ENS). There he attended lectures by Henri Cartan, Laurent Schwartz, and Alfred Kastler and was especially influenced by Kastler who taught physics. After spending a stint with the army, he returned to Kastler’s laboratory for doctoral research. He embarked on an academic career after completing his PhD and started teaching at the University of Paris while continuing to work as a research scientist in the department of physics at ENS. It was over the course of his research there that he successfully expanded on the work of Chu and Phillips leading to their Nobel Prize winning discoveries.


$600 Thousand


Unfortunately, one of their sons, Alain, died in 1993 after suffering from a long illness, at the age of 34


He formed a new experimental group with Alain Aspect, Christophe Salomon, and Jean Dalibard in 1984 and worked on techniques of laser cooling and trapping


By the late 1980s physicists Steven Chu and William Daniel Phillips had also performed some significant research in laser cooling


In 1973, he moved to the Collège de France as a professor


He resumed working toward his doctorate in 1960 under the supervision of Kastler and Jean Brossel with a research post at the CNRS (French National Center for Scientific Research) and finally earned his PhD at the end of 1962


In 1958 Claude Cohen-Tannoudji married Jacqueline Veyrat, a high school teacher


He joined Kastler’s small group of researchers in 1955 for his diploma work


He completed his primary and secondary school education in Algiers during the relatively peaceful years before the Algerian War of Independence and left Algiers for Paris in 1953


Claude Cohen-Tannoudji was born on 1 April 1933 in Constantine, Algeria, to Algerian Jewish parents Abraham Cohen-Tannoudji and Sarah Sebbah

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