“Positronium is the simplest atom composed of equal-mass constituents, and until it self-annihilates, it behaves as a neutral ...

For the first time, physicists have watched a beam of positronium, a short‑lived atom made of an electron and its antimatter ...

First experimental observation of matter-wave diffraction in a short-lived electronpositron atom using a graphene-based ...

For the first time, researchers from Tokyo University of Science have observed wave-like interference patterns from ...

“Positronium is the simplest atom composed of equal-mass constituents, and until it self-annihilates, it behaves as a neutral ...