113 citations · 351 across the 6 of their papers we have counts for
8 papers
Ground state of Li and Be using explicitly correlated functions
Mariusz Puchalski, Dariusz Kedziera, Krzysztof Pachucki
We compare the explicitly correlated Hylleraas and exponential basis sets in the evaluations of ground state of Li and Be. Calculations with Hylleraas functions are numerically…
Fine and hyperfine splitting of the 2P state in Li and Be
Mariusz Puchalski, Krzysztof Pachucki
Accurate calculations of the fine and hyperfine splitting of the 2P state in Li and Be isotopes using the explicitly correlated Hylleraas basis set are presented. Theoretical p…
Relativistic, QED, and finite nuclear mass corrections for low-lying states of Li and Be
Mariusz Puchalski, Krzysztof Pachucki
Accurate results for nonrelativistic energy, relativistic, QED, and finite nuclear mass corrections are obtained for , and states of the Li at…
Singular Hylleraas three-electron integrals
Krzysztof Pachucki, Mariusz Puchalski
Calculations of the leading quantum electrodynamics effects in few electron systems involve singular matrix elements of the inter-electronic distances of the form and $1/…
Positronium-ion decay
Mariusz Puchalski, Andrzej Czarnecki, Savely G. Karshenboim
We present a precise theoretical prediction for the decay width of the bound state of two electrons and a positron (a negative positronium ion), Gamma(Ps^-) = 2.087 085(12)/ns. We…
Ground state wave function and energy of the lithium atom
Mariusz Puchalski, Krzysztof Pachucki
Highly accurate nonrelativistic ground-state wave function and energy of the lithium atom is obtained in the Hylleraas basis set. The leading relativistic corrections,as represente…