Scientists have clocked the speed of Cepheid stars -- 'standard candles' that help us measure the size of the universe -- with unprecedented precision, offering exciting new insights about them.

Researchers have demonstrated that quantum entanglement can link atoms across space to improve measurement accuracy. By ...

Precision measurements in atomic and ion physics have become a cornerstone for testing the limits of our understanding of quantum electrodynamics (QED) and the Standard Model. By harnessing ...

Input bias current is a usually overlooked amplifier parameter that can have a significant effect on an amplifier circuit’s output accuracy. Sometimes the effect is small enough to be ignored, but ...

Physicists in Australia have demonstrated the first “pumped” atom laser. Their achievement marks another step on the road to a continuously operating atom laser, which should enable high-precision ...

Entangled atoms, separated in space, are giving scientists a powerful new way to measure the world with stunning precision.

A schematic of a laser going through an AOM, which sends sound waves into a silicon cavity. Credit: Kenna Hughes-Castleberry/JILA/Ye and Hall Groups Within atomic and laser physics communities, ...

A new dual-microcomb method enables chip-scale devices to measure distances with nanometer accuracy, paving the way for advances in nanotechnology and photonics. (Nanowerk News) Optical frequency ...

“Classical Cepheids” are a type of pulsating star that rhythmically brightens and dims over time. These pulsations help astronomers measure vast distances across space, which makes Cepheids crucial ...