Particle Physics Facility
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World's only source of low-energy antiprotons
CERN's BASE collaboration kept a single antiproton oscillating between quantum states for 50 seconds—long enough to create the world's first antimatter qubit. The breakthrough, published in Nature in July 2025, opens the door to measuring antiproton properties with 10 to 100 times more precision than before. That precision could answer a cosmic mystery: why the universe exists.
Updated May 19
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