3 papers
physics.atom-ph2026
Theory for the Rydberg states of helium: quantum defect extensions and comparison with experiment up to for the singlet and triplet -states
G. W. F. Drake, Aaron T. Bondy
High precision variational calculations for helium in Hylleraas coordinates are used to obtain a combination of quantum defect expansions for the nonrelativistic energy and e…
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
Theory for the Rydberg states of helium: Comparison with experiment for the state ()
Aaron T. Bondy, G. W. F. Drake, Cody McLeod +3
Recent measurements of the ionization energies of the Rydberg states of helium for principal quantum number and higher present a new challenge to theoretical atomic…