精东传媒

Lasers are cool, very cool

By Mark Buchanan

16 March 2002

L茅vy Statistics and Laser Cooling by Fran莽ois Bardou, Jean-Philippe Bouchaud, Alain Aspect and Claude Cohen-Tannoudji, Cambridge University Press, 拢19.95, ISBN 0521004225

HOW can you cool a cloud of atoms to within a whisper of absolute zero? Blasting it with laser beams would certainly seem an unlikely option, yet this is precisely how physicists have managed the trick, leading to experiments in Bose-Einstein condensation and the creation of matter waves, and the excruciating details of atomic physics and quantum optics. So it is fortunate that French physicists Fran莽ois Bardou, Jean-Philippe Bouchaud, Alain Aspect and Claude Cohen-Tannoudji have now written…

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