Collisional frequency shift of a trapped-ion optical clock

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DOIResolve DOI: http://doi.org/10.1103/PhysRevA.96.022704
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  1. National Research Council Canada. Measurement Science and Standards
TypeArticle
Journal titlePhysical Review A
ISSN2469-9926
2469-9934
Volume96
Issue2
Pages022704-1–022704-5
Abstract
Collisions with background gas can perturb the transition frequency of trapped ions in an optical atomic clock. We develop a nonperturbative framework based on a quantum channel description of the scattering process and use it to derive a master equation which leads to a simple analytic expression for the collisional frequency shift. As a demonstration of our method, we calculate the frequency shift of the Sr+ optical atomic clock transition due to elastic collisions with helium.
Publication date
PublisherAmerican Physical Society
LanguageEnglish
Peer reviewedYes
NPARC number23002648
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Record identifiera4b50704-9edc-489e-b3cb-f46b405e6449
Record created2017-12-08
Record modified2017-12-08
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