At the smallest scales of nature, the rules of the world shift in ways that can feel unsettling and beautiful at the same ...

Physicists have finally watched positronium, a short‑lived atom made of an electron and its antimatter twin, behave like a rippling quantum wave instead of a tiny billiard ball. In a set of ...

A cluster of 7,000 sodium atoms has just been coaxed into behaving as a single, ghostly wave, stretching quantum weirdness into a realm that starts to look uncomfortably like everyday matter. Instead ...

A microscopic clump of sodium has become the largest object ever to be observed as a wave, improving upon previous records by thousands of atoms. Quantum physics defines particles in terms of waves, ...

Tests in a gate-defined loop on graphene tracked a fractional charge circling back with a steady interference beat, as ...

Long before quantum mechanics existed, a scientist developed a powerful way of describing motion by drawing an analogy between particles and light.