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Smallest trapped ion clock physics package demonstrated December 28th, 2012

In collaboration with Sandia National Laboratory in a joint DARPA project, JPL has developed a 3 cc trapped ion package. The Yb+ ion clock package is completed sealed off without any active pump yet provide exceptionally long long trapping lifetime. Using this small package, the Sandia team was able to demonstrate the fractional frequency stability at the level of 10^-14 range after a few days of integration. The results have been reported in Applied Physics Letters