In early 2025, special signals wended their way through a fiber-optic highway strung above the streets and sidewalks of the ...

Bose-Einstein condensates (BECs) are often described as a "fifth state of matter": a quantum state in which many particles ...

Electrons zipping through transistors, powering the screens on our smartphones. Light zooming from distant stars to Earth, ...

(Tony Melov/Canva) Quantum mechanics is so odd that even the visionary genius who described the secrets of the Universe ...

Photons traveling through a cloud of atoms can emerge so early that they appear to have spent a negative amount of time ...

In a study, physicists now observed a class of quantum particles called fractional excitons, which behave in unexpected ways and could significantly expand scientists' understanding of the quantum ...

The company has drawn governments, a major chipmaker, and the Pentagon into an effort to control fragile photons and build a useful quantum machine. It aims to be the first.

(Jian Fan/iStock/Getty Images Plus) Maintaining a long-distance relationship may be difficult for humans, but it's even more difficult for entangled states. The longer the fiber, the harder it becomes ...

Imagine shining a flashlight across a dark room. You can predict exactly what the light will do: travel in a straight line from one point to another. That seems obvious, because in the world we see ...

NIST physicist Yicheng Shi displays the equipment used to distribute entangled photons. Credit: Megan King In early 2025 ...

Vacuum birefringence -- the QED prediction that extreme magnetic fields turn empty space into an optical filter -- has its ...

A real-world test shows fragile quantum internet signals can share cables with everyday internet traffic and survive intact.