Could optical clocks redefine the length of a second Washington DC (SPX) May 30, 2016 - GPS-based navigation, communication systems, electrical power grids and financial networks all rely on the precise time kept by a network of around 500 atomic clocks located around the world. In The Optical Society's journal for high impact research, Optica, researchers present a way to use optical clocks for more accurate timekeeping than is possible with today's system of traditional atomic cl ... more

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