Cold-Atom Clocks as Part of a Timing Ensemble

S. Peil, J.L. Hanssen, T.B. Swanson, J. Taylor, C.R. Ekstrom

Abstract:	Four rubidium fountains have been in continuous operation at USNO for 2.8 years. They contribute to the local timescale and are reported to the BIPM as continuously running clocks – as opposed to secondary standards – the first and only cold-atom clocks so reported. In a recent paper [1] we analyzed fountain behavior over the first 2 years of continuous operation; this reference provides details of the analysis of fountain performance, which is summarized here. The additional 8 months of operation shows this same behavior continuing.
Published in:	Proceedings of the 45th Annual Precise Time and Time Interval Systems and Applications Meeting December 2 - 5, 2013 Hyatt Regency Bellevue Bellevue, Washington
Pages:	304 - 305
Cite this article:	Peil, S., Hanssen, J.L., Swanson, T.B., Taylor, J., Ekstrom, C.R., "Cold-Atom Clocks as Part of a Timing Ensemble," Proceedings of the 45th Annual Precise Time and Time Interval Systems and Applications Meeting, Bellevue, Washington, December 2013, pp. 304-305.
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