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News FlashReally 'Cool' Lasers Bag Nobel Prize for Chu

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More than 12 years after his first experiments to trap atoms optically, physicist Steven Chu has won a Nobel Prize for his use of lasers to cool atoms to nearly absolute zero. Chu, a professor of physics at California's Stanford University, showed the world how beams of coherent photons, with nearly no mass of their own, could create an "optical molasses." Inside the laser beams, atoms slow to a crawl. From this point, two other researchers added their expertise to the laser cooling, creating a true optical trap that is capable of holding these slow, cool atoms indefinitely. Investigations...Read full article

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