4 papers
Theoretical calculations of isotope shifts in highly charged Ni ion
Shi-cheng Yu, Hua Guan, Lei She +1
We present relativistic many-body perturbation theory plus configuration interaction (MBPT+CI) calculations of the lowest four excited states of Ni, a promising candidate f…
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…
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…
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…