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Analysis of thermal radiation in ion traps for optical frequency standards
Miroslav Doležal, Petr Balling, Peter B R Nisbet-Jones +16
In many of the high-precision optical frequency standards with trapped atoms or ions that are under development to date, the AC Stark shift induced by thermal radiation leads to a…
Frequency comparison of Yb ion optical clocks at PTB and NPL via GPS PPP
J. Leute, N. Huntemann, B. Lipphardt +11
We used Precise Point Positioning, a well-established GPS carrier-phase frequency transfer method to perform a direct remote comparison of two optical frequency standards based on…
Least-squares analysis of clock frequency comparison data to deduce optimized frequency and frequency ratio values
H. S. Margolis, P. Gill
A method is presented for analysing over-determined sets of clock frequency comparison data involving standards based on a number of different reference transitions. This least-squ…