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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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Figure 1: Central features of the ALPHA collaboration's antihydrogen formation and trapping apparatus.


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Correspondence to Clifford M. Surko.

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Surko, C. Gotcha!. Nature Phys 7, 520–521 (2011).

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