By replacing single atoms with an entangled pair of ions, physicists in Germany have demonstrated unprecedented stability in ...

Once considered an oddity of quantum physics, time crystals could be a good building block for accurate clocks and sensors, ...

Smaller version Illustration of a conventional atomic fountain clock (left) next to NPL’s miniature atomic fountain clock. (Courtesy: NPL) A miniature version of an atomic fountain clock has been ...

How can the strange properties of quantum particles be exploited to perform extremely accurate measurements? This question is at the heart of the research field of quantum metrology. One example is ...

What if the key to unlocking new physics lies in keeping better time? Inside the quiet journey to build a nuclear clock so precise, it could redefine our understanding of reality. Researchers are ...