Quantum entanglement happens when two particles become interconnected and share a single state. Scientists have measured how ...

Quantum mechanics has always carried a quiet tension. At its core, the theory allows particles to exist in many states at ...

For more than a century, modern physics has rested on two towering frameworks that do not quite agree with each other.

Quantum state diffusion framework makes it possible to characterize quantum measurement in terms of entropy production ...

Researchers at the University of Basel and the Laboratoire Kastler Brossel have demonstrated how quantum mechanical ...

Quantum mechanics, the theory that governs the subatomic world, rests on a persistent paradox. It describes particles that ...

Quantum mechanics is rich with paradoxes and contradictions. It describes a microscopic world in which particles exist in a ...

Quantum physicists are familiar with wonky, seemingly nonsensical phenomena: atoms and molecules sometimes act as particles, sometimes as waves; particles can be connected to one another by a “spooky ...

At 11:30 one night in May 2024, a graduate student, Chuankun Zhang, saw a signal that physicists have sought for 50 years. As a peak rose from the static on his monitor at the research institute JILA ...

Physicists have nailed a fiendishly difficult measurement — the mass of the fundamental particle the W boson. The result, from the CMS experiment at the Large Hadron Collider (LHC), is in line with ...

Smaller version Illustration of a conventional atomic fountain clock (left) next to NPL’s miniature atomic fountain clock.