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arXiv · 2307.00864

Ground state EIT cooling of $^{171}$Yb$^+$ ion

D. S. Krysenko·O. N. Prudnikov·A. V. Taichenachev·V. I. Yudin·S. V. Chepurov·S. N. Bagaev
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Abstract

The work propose a scheme of deep laser cooling of $^{171}$Yb$^{+}$. The cooling is based on the effect of electromagnetically induced transparency (EIT) in a polychromatic field with three frequency components are resonant to optical transitions of the $^2S_{1/2} \to \, ^2P_{1/2}$ line. The deep cooling down to the ground motional state in a trap allows for a significant suppression of the second order Doppler shift in frequency standards. Moreover, there is no need to use a magnetic field, which is required for Doppler cooling of $^{171}$Yb$^{+}$ in a field with two-frequency component. The cooling without use of magnetic field is important for deep suppression of quadratic Zeeman shifts of clock transitions from uncontrolled residual magnetic fields.

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D. S. Krysenko, O. N. Prudnikov, A. V. Taichenachev, V. I. Yudin, S. V. Chepurov, S. N. Bagaev. 2023-07-03. Ground state EIT cooling of $^{171}$Yb$^+$ ion. https://doi.org/10.1103/physreva.108.043114

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