The constancy of the speed of light is a pillar of modern physics, but questions persist about its absolute universality.

Photons, for centuries both a puzzle and a tool, continue to help scientists illuminate nature at the smallest and largest ...

Researchers at the Hebrew University of Jerusalem have overturned a 180-year-old scientific assumption, proving ...

A tiny device that entangles light and electrons without super-cooling could revolutionize quantum tech in cryptography, ...

An experiment 180 years ago first demonstrated a connection between light and electromagnetism – but the link is deeper than we thought ...

If so, laws might change when the universe itself changes phase. In the early universe, as temperatures and densities shifted, forces split apart from a unified origin. What we call “laws” may be like ...

"These single atoms are like the smallest slits you could possibly build." For over 100 years, quantum physics has taught us that light is both a wave and a particle. Now, researchers at the ...

Researchers in Konstanz discovered a way to manipulate materials with light by exciting magnon pairs, reshaping their magnetic “fingerprint.” This allows non-thermal control of magnetic states and ...

Scientists have taken a major step toward solving a long-standing mystery in particle physics, by finding no sign of the ...

Since then, countless experiments have confirmed that light always travels at the same speed in a vacuum — about 300,000 ...

No single country or region dominates quantum-physics research in the Nature Index; institutions from China, Europe and the United States all feature in the top 10. The University of Science and ...