Quantum

The study of matter and energy at the smallest scales, including ultracold atoms and quasiparticles.

Articles about Quantum

Physics
Quantum Rules Hold for Metal Clusters

Quantum Rules Hold for Metal Clusters
A Vienna experiment shows nanoscale metal clusters made of thousands of atoms produce clear quantum interference, tightening limits on models that would force larger objects to be…
Physics
How Feynman Rewrote Motion

How Feynman Rewrote Motion
Richard Feynman's path-integral idea shows that classical motion is an emergent pattern of quantum possibilities; a 2023 experiment made that emergence visible by measuring single…
Physics
Does Physics Disprove Free Will?

Does Physics Disprove Free Will?
Physicists, philosophers and neuroscientists disagree: determinism, quantum uncertainty, chaos and emergence each change the free-will question. This article explains how modern p…
Physics
Pi in Nature: Ramanujan's Surprise

Pi in Nature: Ramanujan's Surprise
A team at the Indian Institute of Science reports in Physical Review Letters (22 December 2025) that formulas Srinivasa Ramanujan discovered more than a century ago reappear insid…