Positive step towards gamma laser

Molecular positronium was a theoretical quasi-compound, imagined as forming when a pair of electrons and a pair of their antimatter counterparts hook up. Now, David Cassidy and Allen Mills of the University of California Riverside have synthesized this unique material, fleetingly, in the laboratory. The research points the way to ways to generate coherent gamma radiation - a gamma laser. The discovery might one day allow us to harness nuclear fusion for power generation. The researchers made the positronium molecules by firing intense bursts of positrons into a thin film of porous silica. Cassidy and Mills plan to work next on using a more intense positron source to generate a "Bose-Einstein condensate" of positronium -- a collection of positronium atoms that are in the same quantum state