Claude Cohen-Tannoudji (French pronunciation: [klod kɔɛn tanudʒi]; born 1 April 1933) is a French physicist at the École normale supérieure in Paris. He is known for his experiments in laser cooling. He was the first to show that it is possible to cool far beyond the limit expected by sub-Doppler cooling, below the recoil temperature.
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.
HistoryLayer draws the world as it was in any year from 123,000 BCE to
2026. Move the slider and the borders redraw for that year; the map
carries 23,890 events, 12,790 people, 837 wars and 13,183 cities, each
one readable in place. Signing in is optional and lets you keep what
you find.