Miniature Atomic Beam Clocks Revolutionize Timekeeping Technology

Scientists at the US National Institute of Standards and Technology (NIST) have developed a chip-scale beam clock (CSBC) that is small enough to fit in a pocket. The CSBC combines the technologies of chip-scale atomic clocks (CSACs) and atomic beam clocks to measure time via atoms. While the CSBC is not as accurate as its predecessors, it opens up possibilities for applications such as quantum sensing and the construction of higher-performance compact clocks. Further testing and improvements are needed to enhance stability and accuracy.