In this paper, we overview recent advances in high-precision structure calculations of the hydrogen molecular ions(H+2and HD+), including nonrelativistic energy eigenvalues and relativistic and quant...
In atomic, molecular, and nuclear physics, the method of complex coordinate rotation is a widely used theoretical tool for studying resonant states. Here, we propose a novel implementation of this me...
The fine structure constant α can be extracted from high-precision spectroscopy of the 23 P J fine structure splittings in helium and light helium-like ions. In this work, the 23 P J fine structure ...
The fine and hyperfine structures of pionic helium metastable states is calculated within the formalism of the Breit–Pauli Hamiltonian by using the variationally generated wave functions in Hylleraa...
Analytical formulas for the static multipole polarizabilities of hydrogen-like ions are derived by using the analytical wave functions and the reduced Green function and by applying a numerical fitti...