Can a small lump of metal be in a quantum state that extends over distant locations? A research team at the University of ...

Experiments reveal that metallic nanoparticles thousands of atoms wide can exist in quantum superposition, providing a ...

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

An experiment has revealed quantum effects for the most macroscopic object yet – and extended the validity of quantum ...

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

Now, two unrelated-but-similar experiments confirm that, in a double-slit experiment, detection of a photon’s path (its ...

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