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Atomic physics

A whiff of antimatter soup

A Correction to this article was published on 03 October 2007

A molecule consisting of two electrons and two anti-electrons is similar to, but different from, the familiar hydrogen molecule H2. Its creation heralds a new chapter in the formation of matter–antimatter states.

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Figure 1: Positronium gets it together.

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Surko, C. A whiff of antimatter soup. Nature 449, 153–155 (2007). https://doi.org/10.1038/449153a

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