An Australian scientist has developed a clock so accurate it is expected to lead to a new standard for defining time. The new clock is so stable over short time periods, it is equivalent to a clock that loses or gains only one second every 40 million years.
Reposted From: ABC Science, full article below.
The Sapphire Clock is featured on the front cover of “Cold Facts”, the official publication of the Cryogenic Society of America,
The Sapphire Clock is a cryogenic sapphire oscillator that allows time to be measured to the femtosecond scale (one quadrillionth of a second), the kind of accuracy required for ultra high precision measurements; such as radar technology, long baseline astronomy and quantum computing.
Building off technology developed by Prof Andre Luiten in 1996 and Prof John Hartnett in 2004-2012, the most recent version of the Sapphire Clock is capable of 100 time better spectral purity than other commercially available technologies.
The Sapphire Clock team is led by A/Prof Martin O’Connor and a commercial version will be available in late 2017.
Ref: O’Connor et al (2017) Cold Facts, Vol 33 (1): 16-17.