Evaluation of systematic shifts for the 88Sr+ 445-THz reference transition at the 10-17 level using the NRC next generation ion trap system

DOIResolve DOI: http://doi.org/10.1109/CPEM.2012.6250904
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Proceedings title2012 Conference on Precision Electromagnetic Measurements
Conference2012 Conference on Precision Electromagnetic Measurements (CPEM 2012), July 1-6, 2012, Washington, DC, USA
Pages266267; # of pages: 2
SubjectClocks; frequency control; ions; lasers; precision mesurements; spectroscopy; start effect; strontium
AbstractWe describe receent progress in the establishment of a versatile and reliable optical frequency standard whose performance in evaluated accuracy and stability exceeds that of the current realization of the SI second. The 445-THz reference transition in a single, trapped, and laser cooled ion of 88Sr⁺ suspended using a miniature RF endcap trap system in the new trap have been reduced to the 2 x 10⁻¹⁷ level for each of the scalar Stak shifts and the time dilation shifts. Studies indicate that such shifts remain stable over several hours. An identical trap system was constructed to evaluate the electrode heating effects of the shift will be limited by the current knowledge of the scalar polarizabilities of the upper and lower states of the reference transition, currently at the 2 x 10⁻¹⁷ level.
Publication date
AffiliationNational Research Council Canada; Measurement Science and Standards
Peer reviewedYes
NPARC number21270478
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Record identifierb3acf826-ade8-4b35-bba7-45661713048b
Record created2014-02-13
Record modified2016-05-09
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