It was such a peaceful morning that Yoshito Matsushige could scarcely believe it was wartime. Matsushige, a 32-year-old ...

Key TakeawaysScientists have used laser-excited thorium-229 to probe for ultralight dark matter, even without a fully built nuclear clock. Thorium-229’s unique nuclear transition offers up to a ...

Daniel Kleppner, an experimental physicist who helped to develop an atomic clock that became an essential part of global positioning systems, or GPS, and who also helped to discover a rare ...

Optical quantum clocks developed at the University of Adelaide have been proven to outperform GPS navigation systems by many orders of magnitude. The clocks, which were put through their paces in ...

The pre-sleep freaking out, the compulsive clock-watching, the bargaining, the middle-of-the-night doom-prophesizing, the despairing—CBT-I attempts to snip that loop.

By using a clever quantum approach that involves two "hands" on a clock one moving quickly and invisibly in the quantum world, the other more traditionally scientists have found a way to ...

Adtran’s unique cesium clock solutions deliver longer service life and reduced total cost of ownership OSA 3200 SP and OSA 3250 ePRC replace aging magnetic cesium clocks and simplify network ...

Adtran expands Oscilloquartz atomic clock portfolio with lower-cost optical cesium solutions for wider market adoption Provided by Business Wire Jun 2, 2025, 5:00:00 AM ...

By using paired, offset optical combs and RF electronics, researchers devised a unique atomic-clock architecture.

A new atomic clock at the National Institute of Standards and Technology in Boulder is helping researchers count seconds to ensure the world is on time.

From space, the Atomic Clock Ensemble in Space will link to some of the most accurate clocks on Earth to create a synchronized network, which will support tests of fundamental physics.