A New Kind of Atomic Clock Could Redefine the Second

Scientists are exploring a new type of optical atomic clock based on ytterbium-173 ions that could help define the future standard for measuring time.
Phys.org

Optical atomic clocks poised to redefine how the world measures seconds

Time is almost up on the way we track each second of the day, with optical atomic clocks set to redefine the way the world measures one second in the near future. Researchers from Adelaide University ...
Nature

Elusive ‘nuclear clocks’ tick closer to reality — after decades in the making

Physicists are getting closer to creating a long-sought ‘nuclear clock’. This device would keep time by measuring energy ...