Browsing by Subject "Frequency shift"

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Evaluation of a Sr+ 88 Optical Clock with a Direct Measurement of the Blackbody Radiation Shift and Determination of the Clock Frequency

Steinel, M.; Shao, H.; Filzinger, M.; Lipphardt, B.; Brinkmann, M.; Didier, A.; Mehlstäubler, T. E.; Lindvall, T.; Peik, E.; Huntemann, N. (College Park, Md. : APS, 2023)

We report on an evaluation of an optical clock that uses the S21/2→D25/2 transition of a single Sr+88 ion as the reference. In contrast to previous work, we estimate the effective temperature of the blackbody radiation ...
Extended Coherence Time on the Clock Transition of Optically Trapped Rubidium

Kleine Buening, G.; Will, J.; Ertmer, Wolfgang; Rasel, Ernst Maria; Arlt, Jan J.; Klempt, Carsten; Ramirez-Martinez, F.; Piechon, F.; Rosenbusch, P. (College Park : American Physical Society, 2011)

Optically trapped ensembles are of crucial importance for frequency measurements and quantum memories but generally suffer from strong dephasing due to inhomogeneous density and light shifts. We demonstrate a drastic ...

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