Scientists test Einstein’s quantum challenge with one atom, directly measuring when photon paths erase interference stripes.

Researchers have demonstrated that a nanoparticle of 7,000 sodium atoms can act as a wave, creating a record-setting superposition.

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

For more than a century, scientists have known that waves can behave in ways that seem to defy common sense, from freak walls ...

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 ...

The quantum physics of massive particles has intrigued physicists for more than 80 years, since it predicts that even complex particles can exhibit wave-like behaviour – in conflict with our everyday ...

An experiment measuring a single atom's recoil confirmed that observing a particle destroys interference, settling the ...

Light is well known to exhibit both wave-like and particle-like properties, as imaged here in this 2015 photograph. What's less well appreciated is that matter particles also exhibit those wave-like ...