Measurement of the static Stark Shift of the 7s ²S_1/2 level in atomic cesium

2023/11/15 by Jonah Quirk, Quirk, Jonah A., Aidan Jacobsen +7
Physics and Astronomy · #Advanced Frequency and Time Standards #Atomic Physics (physics.atom-ph) #Atomic and Molecular Physics #Atomic and Subatomic Physics Research #FOS: Physical sciences

paper · pdf · doi:10.48550/arxiv.2311.09169

openalex publication_date 2023/11/15 · openalex created_date 2023/11/17 · openalex updated_date 2026/07/28

Abstract

We report a new precision measurement of the dc Stark shift of the 6s\hspace1mm ²S_1/2 → 7s\hspace1mm²S_1/2 transition in atomic cesium-133. Our result is 0.72246 (29) \textrmHz(\textrmV/\textrmcm)^-2. This result differs from a previous measurement of the Stark shift by ∼0.5%. We use this value to recalculate the magnitude of the reduced dipole matrix elements ⟨7s ||r||7p_j⟩, as well as the vector transition polarizability for the 6s → 7s transition, β = 27.043 (36) a₀³. This determination helps resolve a critical discrepancy between two techniques for determining the vector polarizability.

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