Claude Cohen-Tannoudji

Claude Cohen-Tannoudji - Physicists, Timeline and Life

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Claude Cohen-Tannoudji's Personal Details

Claude Cohen-Tannoudji is a French physicist who won a share of the 1997 Nobel Prize in Physics

InformationDetail
BirthdayApril 1, 1933
NationalityFrench
FamousScientists, Physicists
SpousesJacqueline Veyrat (m. 1958)
Birth PlaceConstantine, Algeria
Height170
GenderMale
FatherAbraham Cohen-Tannoudji
MotherSarah Sebbah
Net Worth$0.6 million as of April 15,2017
Sun SignAries
Born inConstantine, Algeria
Famous asPhysicist

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Who is Claude Cohen-Tannoudji?

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.

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Childhood & Early Life

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

Even though he grew up during a politically chaotic period in Europe and French colonies, his family was able to escape persecution at the hands of Nazis due the arrival of the Americans in Algeria. 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.

In Paris, he joined the École Normale Supérieure (ENS) where he spent four highly interesting years. He attended lectures in mathematics given by Henri Cartan and Laurent Schwartz, and in physics by Alfred Kastler. Initially he was more interested in mathematics but soon he shifted his focus to physics, partly because of his great admiration for Kastler.

He joined Kastler’s small group of researchers in 1955 for his diploma work. The same year he spent two months at Les Houches summer school in the Alps where he attended lectures by the likes of J. Schwinger, N. Ramsey, G. Uhlenbeck, W. Pauli, A. Abragam, A. Messiah, and C. Bloch.

In the midst of the Algerian War, he was conscripted into the army interrupting his studies. He served in the army for 28 months, a part of which he spent in a scientific department supervised by Jacques Emile Blamont where he studied the upper atmosphere with rockets releasing sodium clouds at the sunset.

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.

Career

After completing his doctorate, Cohen-Tannoudji accepted a teaching position at the University of Paris at the urging of his mentor Kastler. Thus he began teaching quantum mechanics while continuing to work as a research scientist in the department of physics at ENS. Over the ensuing period his research team developed the model of the dressed atom.

His teaching experiences during this time led to the publication of the popular textbook ‘Mécanique quantique’ (Quantum Mechanics), which he wrote with two of his colleagues.

In 1973, he moved to the Collège de France as a professor. The job was a very enriching one which also resulted in the publication of two books on quantum electrodynamics and quantum optics written with Jacques Dupont-Roc and Gilbert Grynberg.

He lectured on the emerging field of radiative forces in the early 1980s. In the mid-1980s he began the work which would ultimately fetch him to the Nobel Prize. 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. Cohen-Tannoudji and his colleagues furthered the work done by Chu and Phillips to come up with newer discoveries that paved the way for the development of several new practical applications.

Major Works

Cohen-Tannoudji collaborated with his colleagues at ENS to expand on the work on laser cooling done by physicists Steven Chu and William Daniel Phillips to explain a seeming discrepancy in theory. He took a statistical approach to laser cooling with the use of stable distributions and devised new mechanisms for cooling and trapping atoms with laser light.

Awards & Achievements

In 1979, he received the Young Medal and Prize, for distinguished research in the field of optics.

He is the recipient of Charles Hard Townes Award (1993) and CNRS Gold medal (1996).

Claude Cohen-Tannoudji, Steven Chu, and William D. Phillips were jointly awarded the Nobel Prize in Physics in 1997 "for development of methods to cool and trap atoms with laser light".

Personal Life & Legacy

In 1958 Claude Cohen-Tannoudji married Jacqueline Veyrat, a high school teacher. The couple had three children. Unfortunately, one of their sons, Alain, died in 1993 after suffering from a long illness, at the age of 34.

Trivia

This scientist was the first physics Nobel Prize winner born in an Arab country.

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Claude Cohen-Tannoudji biography timelines

  • // 1st Apr 1933
    Claude Cohen-Tannoudji was born on 1 April 1933 in Constantine, Algeria, to Algerian Jewish parents Abraham Cohen-Tannoudji and Sarah Sebbah. Algeria was then part of France.
  • // 1953
    Even though he grew up during a politically chaotic period in Europe and French colonies, his family was able to escape persecution at the hands of Nazis due the arrival of the Americans in Algeria. 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.
  • // 1955
    He joined Kastler’s small group of researchers in 1955 for his diploma work. The same year he spent two months at Les Houches summer school in the Alps where he attended lectures by the likes of J. Schwinger, N. Ramsey, G. Uhlenbeck, W. Pauli, A. Abragam, A. Messiah, and C. Bloch.
  • // 1958 To 1993
    In 1958 Claude Cohen-Tannoudji married Jacqueline Veyrat, a high school teacher. The couple had three children. Unfortunately, one of their sons, Alain, died in 1993 after suffering from a long illness, at the age of 34.
  • // 1960 To 1962
    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.
  • // 1973
    In 1973, he moved to the Collège de France as a professor. The job was a very enriching one which also resulted in the publication of two books on quantum electrodynamics and quantum optics written with Jacques Dupont-Roc and Gilbert Grynberg.
  • // 1979
    In 1979, he received the Young Medal and Prize, for distinguished research in the field of optics.
  • // 1984
    He lectured on the emerging field of radiative forces in the early 1980s. In the mid-1980s he began the work which would ultimately fetch him to the Nobel Prize. 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.
  • // 1993 To 1996
    He is the recipient of Charles Hard Townes Award (1993) and CNRS Gold medal (1996).
  • // 1997
    Claude Cohen-Tannoudji, Steven Chu, and William D. Phillips were jointly awarded the Nobel Prize in Physics in 1997 "for development of methods to cool and trap atoms with laser light".

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Claude Cohen-Tannoudji's FAQ

  • What is Claude Cohen-Tannoudji birthday?

    Claude Cohen-Tannoudji was born at 1933-04-01

  • Where is Claude Cohen-Tannoudji's birth place?

    Claude Cohen-Tannoudji was born in Constantine, Algeria

  • What is Claude Cohen-Tannoudji nationalities?

    Claude Cohen-Tannoudji's nationalities is French

  • Who is Claude Cohen-Tannoudji spouses?

    Claude Cohen-Tannoudji's spouses is Jacqueline Veyrat (m. 1958)

  • How tall is Claude Cohen-Tannoudji?

    Claude Cohen-Tannoudji's height is 170

  • Who is Claude Cohen-Tannoudji's father?

    Claude Cohen-Tannoudji's father is Abraham Cohen-Tannoudji

  • Who is Claude Cohen-Tannoudji's mother?

    Claude Cohen-Tannoudji's mother is Sarah Sebbah

  • What is Claude Cohen-Tannoudji's sun sign?

    Claude Cohen-Tannoudji is Aries

  • How famous is Claude Cohen-Tannoudji?

    Claude Cohen-Tannoudji is famouse as Physicist