A group of physicists at the Massachusetts Institute of Technology in the US has observed evidence for coherent matter-wave amplification in a Bose-Einstein condensate - a crucial process for an "atom laser" - for the first time. An atom laser could produce a coherent beam of atoms all moving with the same speed in the same direction - just like the photons from a laser. Atom lasers could have a major impact on fields such as atom lithography, atom optics and precision measurements.
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