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Vacuum and cryogenics

Vacuum and cryogenics

Matter–antimatter gas of positronium is laser cooled

01 Mar 2024
Positronium experiment at CERN
Cool experiment: the apparatus used by the AEgIS team to laser-cool positronium. (Courtesy: CERN)
Researchers at CERN and the University of Tokyo have independently laser-cooled clouds of positroniu

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Jacklin Kwan is a science writer based in the UK
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