Compensation of the multipolar polarizability shift in optical lattice clocks

In neutral atom optical clocks, the higher-order atomic polarizability terms lead to the clock transition frequency shift which is motion-state dependent and nonlinear with the optical lattice depth. We propose to use an auxiliary optical lattice to compensate the influence of the E2-M1 differential...

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Bibliographic Details
Published in:arXiv.org 2024-02
Main Author: Golovizin, Artem
Format: Article
Language:English
Subjects:
Clocks
Frequency shift
Neutral atoms
Optical lattices
Online Access:Get full text
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Summary:In neutral atom optical clocks, the higher-order atomic polarizability terms lead to the clock transition frequency shift which is motion-state dependent and nonlinear with the optical lattice depth. We propose to use an auxiliary optical lattice to compensate the influence of the E2-M1 differential polarizability or tune the associated coefficient to a favorable value. We show that by applying this method to Sr and Hg optical lattice clocks, the low or even sub-10-19 clock transition frequency uncertainty from the optical lattice becomes feasible. Finally, the proposed scheme is simple for experimental realization and can be implemented and tested in the existing setups.
ISSN:2331-8422