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physics.atom-ph2025★ 1 cited
A Liquid-Nitrogen-Cooled Ca+ Ion Optical Clock with a Systematic Uncertainty of 4.4E-19
Baolin Zhang, Zixiao Ma, Yao Huang +8
We report a single-ion optical clock based on the 4S_1/2-3D_5/2 transition of the 40Ca+ ion, operated in a liquid nitrogen cryogenic environment,achieving a total systematic uncert…
physics.atom-ph2025
Direct Extraction of Nuclear Structure Information Using Precision Lithium-Ion Spectroscopy
Hua Guan, Xiao-Qiu Qi, Jian-Guo Li +14
Accurately describing nuclear interactions within atomic nuclei remains a challenge, which hinders our exploration of new physics beyond the Standard Model. However, these nuclear…
physics.atom-ph2025
Coulomb Crystallization of Highly Charged Ni^12+ Ions in a Linear Paul Trap
Shaolong Chen, Zhiqiang Zhou, Guosheng Zhang +4
Optical clocks have garnered widespread attention due to their unparalleled precision in time-frequency standards, geodetic measurements, and fundamental physics research. Among em…