Lattice Light Shift Evaluations In a Dual-Ensemble Yb Optical Lattice Clock

• URL: http://arxiv.org/abs/2409.10782v1
• Date: Mon, 16 Sep 2024 23:30:33 GMT
• Title: Lattice Light Shift Evaluations In a Dual-Ensemble Yb Optical Lattice Clock
• Authors: Tobias Bothwell, Benjamin D. Hunt, Jacob L. Siegel, Youssef S. Hassan, Tanner Grogan, Takumi Kobayashi, Kurt Gibble, Sergey G. Porsev, Marianna S. Safronova, Roger C. Brown, Kyle Beloy, Andrew D. Ludlow,
• Abstract summary: In state-of-the-art optical lattice clocks, beyond-electric-dipole polarizability terms lead to a break-down of magic wavelength trapping. We report a novel approach to evaluate lattice light shifts, specifically addressing recent discrepancies in the atomic multipolarizability term between experimental techniques and theoretical calculations.
• Score: 11.209313504218509
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: In state-of-the-art optical lattice clocks, beyond-electric-dipole polarizability terms lead to a break-down of magic wavelength trapping. In this Letter, we report a novel approach to evaluate lattice light shifts, specifically addressing recent discrepancies in the atomic multipolarizability term between experimental techniques and theoretical calculations. We combine imaging and multi-ensemble techniques to evaluate lattice light shift atomic coefficients, leveraging comparisons in a dual-ensemble lattice clock to rapidly evaluate differential frequency shifts. Further, we demonstrate application of a running wave field to probe both the multipolarizability and hyperpolarizability coefficients, establishing a new technique for future lattice light shift evaluations.

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