Scientists Built Tiny, Portable Atomic Clocks—and Naturally, They’re Headed for Drones

This breakthrough in precision timing is about the size of your fingernail and only loses one second every 30,000 years.
Science Daily

This tiny quantum clock packs a billion-fold energy mystery

Scientists built a tiny clock from single-electron jumps to probe the true energy cost of quantum timekeeping. They discovered that reading the clock’s output requires vastly more energy than the ...
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Reading a quantum clock uses more energy than operating it

Quantum timekeeping is supposed to be the ultimate in efficiency, with tiny devices that tick using the rules of quantum mechanics instead of swinging pendulums or vibrating quartz. Yet new work on a ...
Physics World

Tiny optical clock is 100 times better than previous chip-based timekeepers

Bean counter: this vapour cell is at the heart of NIST’s next-generation miniature atomic clock. (Courtesy: Hummon/NIST) A tiny optical clock that is small enough to fit onto three computer chips has ...