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in 1924 and first created by Eric Cornell, Carl Wieman, and co-workers at JILA on 5 June 1995. They did this by cooling a dilute vapor consisting of approximately two thousand rubidium-87 atoms to below 170 nK (one nK or nanokelvin is a billionth (10^-9) of a kelvin) using a combination of laser cooling (a technique that won its

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