Refined techniques to mix cold antiprotons and positrons in a magnetic bottle show that antihydrogen atoms can be trapped for 15 minutes — an improvement of four orders of magnitude over previous experiments.
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Surko, C. Gotcha!. Nature Phys 7, 520–521 (2011). https://doi.org/10.1038/nphys2030
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DOI: https://doi.org/10.1038/nphys2030
