Share

A TRAP FOR ULTRA-COLD ATOMS.

UN PIEGE POUR DES ATOMES ULTRAFROIDS.

Author(s) : GIACOBINO E.

Type of article: Article

Summary

A METHOD IS DESCRIBED FOR COOLING GASEOUS ATOMS, WHICH USES A LASER FOR SLOWING THE THERMAL DISTURBANCE OF ATOMS AND, HENCE, WHICH COOLS THEM DOWN TO A TEMPERATURE OF ABOUT ONE MILLIONTH DEGREE KELVIN. MOREOVER, THEATOMS ARE TRAPPED IN A SMALL AREA OF SPACE BY MEAN OF A MAGNETIC FIELD. THE MAGNETO-OPTICAL TRAP DESCRIBED IS ADAPTED TO THE TRAPPING OF THE ATOMS OF CAESIUM VAPOUR, WHICH IS CONFINED AT AMBIENT TEMPERATURE IN A GLASS CELL, AND MAKES IT POSSIBLE, THROUGH A SUCCESSION OF TRAPPINGS AND CONFINEMENTS, TO REACH 1.1 MICROKELVIN. HOW FAR WILL THE RACE TOWARDS ABSOLUTE ZERO GO.

Details

  • Original title: UN PIEGE POUR DES ATOMES ULTRAFROIDS.
  • Record ID : 1992-0099
  • Languages: French
  • Source: Recherche - vol. 22 - n. 229
  • Publication date: 1991/02
  • Document available for consultation in the library of the IIR headquarters only.

Links


See the source

Indexing