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Article
Open AccessSympathetic cooling of a trapped proton mediated by an LC circuit
Efficient cooling of trapped charged particles is essential to many fundamental physics experiments1,2, to high-precision metrology3,4 and to quantum technology5,6. Until now, sympathetic cooling has required clo...
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Article
Direct limits on the interaction of antiprotons with axion-like dark matter
Astrophysical observations indicate that there is roughly five times more dark matter in the Universe than ordinary baryonic matter1, and an even larger amount of the Universe’s energy content is attributed to da...
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Article
Open AccessA parts-per-billion measurement of the antiproton magnetic moment
The magnetic moment of the antiproton is measured at the parts-per-billion level, improving on previous measurements by a factor of about 350.