IEEE Spectrum on MSN
A chip that keeps time (almost) like an atomic clock
For decades, atomic clocks have provided the most stable means of timekeeping. They measure time by oscillating in step with ...
A thorium-doped calcium fluoride crystal's temperature is continually monitored while a VUV frequency comb is used to directly resolve individual quantum states of the nuclear transition. For decades, ...
Clocks on Earth are ticking a bit more regularly thanks to NIST-F4, a new atomic clock at the National Institute of Standards and Technology (NIST) campus in Boulder, Colorado. NIST-F4 measures an ...
A destructive windstorm disrupted the power supply to more than a dozen atomic clocks that keep official time in the United ...
Vladan Vuletić with members of his Experimental Atomic Physics group. From left to right: Matthew Radzihovsky, Leon Zaporski, Qi Liu, Vladan Vuletić, and Gustavo Velez. Every time you check the time ...
Where and why tiny, portable, atomic clocks and their precision are needed. How atomic clocks are no longer room- or box-size arrangements. The size, power, and other metrics of a latest-generation ...
The National Institute of Standards and Technology recently warned that an atomic clock device installed at its Boulder campus had failed due to a prolonged power ...
NIST restored the precision of its atomic clocks after a power outage caused by a power outage disrupted operations. Discover ...
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