AI Summary

Physicists at Northwestern University succeeded in trapping a single antimatter particle for several months, a feat achieved by cooling the particle to temperatures near absolute zero. In this ultra‑cold environment they were able to manipulate its quantum states with high precision without any physical contact. The results, detailed in a paper published in Physical Review Letters, mark a breakthrough in studying antimatter, a substance that theory predicts should be abundant yet remains largely unseen in the observable universe.

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