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

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

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

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 ...

Possibly originating with the English poet Geoffrey Chaucer's "time and tide wait for no man," the idea that time waits for no man has been around for a long time. But time, or at least the latest ...

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.