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arXiv · 2004.05978

Optical clocks based on the Cf$^{15+}$ and Cf$^{17+}$ ions

S. G. Porsev·U. I. Safronova·M. S. Safronova·P. O. Schmidt·A. I. Bondarev·M. G. Kozlov·I. I. Tupitsyn
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Abstract

Recent experimental progress in cooling, trapping, and quantum logic spectroscopy of highly-charged ions (HCIs) made HCIs accessible for high resolution spectroscopy and precision fundamental studies. Based on these achievements, we explore a possibility to develop optical clocks using transitions between the ground and a low-lying excited state in the Cf$^{15+}$ and Cf$^{17+}$ ions. Using a high-accuracy relativistic method of calculation we predicted the wavelengths of clock transitions, calculated relevant atomic properties, and analyzed a number of systematic effects (such as the electric quadrupole-, micromotion-, and quadratic Zeeman shifts of the clock transitions) that affect the accuracy and stability of the optical clocks. We also calculated magnetic dipole hyperfine-structure constants of the clock states and the blackbody radiation shifts of the clock transitions.

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S. G. Porsev, U. I. Safronova, M. S. Safronova, P. O. Schmidt, A. I. Bondarev, M. G. Kozlov, I. I. Tupitsyn. 2020-04-13. Optical clocks based on the Cf$^{15+}$ and Cf$^{17+}$ ions. https://doi.org/10.1103/physreva.102.012802

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