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German Laser Emits Matter Waves

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MUNICH, Germany, March 17 -- Scientists at the Max Planck Institute for Quantum Optics in Garching and the University of Munich have developed a laser that emits a continuous beam of matter waves instead of light. The researchers have imaged the shadow cast by the laser's beam, which shows a pencil-like beam containing about half a million rubidium atoms accelerated downward by gravity. In the Munich experiment, a dilute gas of rubidium atoms is captured in a sophisticated low-power magnetic trap and cooled down to reach Bose-Einstein condensation. With the help of a radiofrequency field,...Read full article

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    Published: March 1999
    Basic ScienceNews & FeaturesLasers

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