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The production of molecular positronium

Circa 2007


When intense positron bursts are implanted into a thin film of porous silica, di-positronium (Ps2) is created on the internal pore surfaces, providing experimental proof of the existence of the molecule. Using a more intense positron source, it may be possible to form a Bose–Einstein condensate of Psf2 molecules, which would be of significant fundamental interest and a milestone on the path to produce an annihilation gamma-ray laser.

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