Abstract: In this paper, we develop a novel time synchronization algorithm for an ensemble of atomic clocks containing a mixture of second order and third order atomic clocks. To design the feedback ...

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The affected atomic clocks, mainly hydrogen masers and cesium beams, are essential for determining UTC(NIST), with 10 to 15 of them typically in active use at the Boulder laboratory. A powerful ...

A power outage at a key atomic clock facility led to the US official time slowing down by just under five millionths of a second last week, the country’s time watchdog said. A severe windstorm knocked ...

When a massive windstorm in Colorado last Wednesday indirectly disconnected more than a dozen atomic clocks from their system, it threw out the US official time standard. These touchstone atomic ...

The U.S. government calculates the country's official time using more than a dozen atomic clocks at a federal facility northwest of Denver. But when a destructive windstorm knocked out power to the ...

How some of the world’s most precise clocks missed a very small beat. By Mike Ives and Adeel Hassan Time appeared to skip a beat last week when some of the world’s most accurate clocks were affected ...

Getting your Trinity Audio player ready... Power shut off across Colorado last week as hurricane-force winds swept across the state. In Boulder, one of those outages caused time to briefly stand still ...

As explained in a mailing list post by Jeffrey Sherman, a NIST supervisory physicist who maintains the institute’s atomic clocks, “The atomic ensemble time scale at our Boulder campus has failed due ...

In advance of hurricane force winds moving into Colorado earlier this week, Xcel Energy preemptively shut off power to protect areas of the state from extreme fire danger. But due to the outage, time ...

A collaboration between researchers in the US and Germany has made a major breakthrough in optical nuclear clocks, achieving laser-based excitation of Thoria-229 in a non-transparent host material.