State-dependent potentials for the ¹𝑆₀ and ³𝑃₀ clock states of neutral ytterbium atoms
Creators
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1.
California Institute of Technology
Abstract
We present measurements of three distinctive state-dependent wavelengths for the ¹𝑆₀−³𝑃₀ clock transition in ¹⁷⁴Yb atoms. Specifically, we determine two magic wavelengths at 652.281(21) and 542.50205(19)THz, where the differential light shift on the ¹𝑆₀−³𝑃₀ clock transition vanishes, and one tune-out wavelength at 541.8325(5)THz, where the polarizability of the ¹𝑆₀ ground state exhibits a zero crossing. The two magic wavelengths are identified by spectroscopically interrogating cold ¹⁷⁴Yb atoms on the clock transition in a one-dimensional optical lattice. The ground-state tune-out wavelength is determined via a parametric heating scheme. With a simple empirical model, we then extrapolate the ground- and excited-state polarizability over a broad range of wavelengths in the visible spectrum.
Copyright and License
© 2023 American Physical Society.
Acknowledgement
We thank C. Bachorz, D. Gröters, B. Hebbe Madhusudhana, T. Marozsak, and D. Robledo for technical contributions to the experiment. We further acknowledge fruitful discussions with V. A. Dzuba, S. Blatt, Y. Takahashi, and G. Pasqualetti. We thank V.A. Dzuba, Y. Takahashi, and F. Scazza for careful reading of the manuscript and S. Fölling, G. Pasqualetti, and O. Bettermann for providing their clock laser as a frequency reference for identifying the zero crossing of our ULE cavity. We also thank the team of Hübner Photonics for the broad frequency-tunable laser source, C-WAVE VIS+IR Low Power [86]. This project has received funding from the Deutsche Forschungsgemeinschaft under Germany's Excellence Strategy (EXC-2111 Grant No. 390814868), from the European Research Council under the European Union's Horizon 2020 research and innovation program (Grant No. 803047), from the German Federal Ministry of Education and Research (BMBF) via the funding program quantum technologies (from basic research to market, Grant No. 13N15895 FermiQP), and from the initiative Munich Quantum Valley from the State Ministry for Science and the Arts as part of the High-Tech Agenda Plus of the Bavarian State Government.
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PhysRevA.108.053325.pdf
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Additional details
Identifiers
- ISSN
- 2469-9934
Funding
- Deutsche Forschungsgemeinschaft
- 390814868
- European Research Council
- 803047
- Federal Ministry of Education and Research
- 13N15895