JILA Team Demonstrates Model System for Distribution of More Accurate Time Signals | NIST

JILA's “time scale” produces a highly accurate timekeeping signal at optical frequencies for possible future distribution. Credit: N. Hanacek/NIST

October 21, 2019, NIST News – JILA physicists and collaborators have demonstrated the first next-generation “time scale” — a system that incorporates data from multiple atomic clocks to produce a single highly accurate timekeeping signal for distribution. The JILA time scale outperforms the best existing hubs for disseminating official time worldwide and offers the possibility of providing more accurate time to millions of customers such as financial markets and computer and phone networks.

The novel time scale architecture combines a super-reliable, advanced atomic clock with an ultrastable device for storing time signals and is a “blueprint for the upgrade of time scales worldwide,” as described in the journal Physical Review Letters.

Source: JILA Team Demonstrates Model System for Distribution of More Accurate Time Signals | NIST