Compact variational wave functions for bound states in three-electron atomic systems

摘要: The variational procedure to construct compact and accurate wave functions for three-electron atoms ions is developed. based on the use of six-dimensional Gaussoids written in relative four-body coordinates r12, r13, r23, r14, r24, r34. nonlinear parameters each basis function have been carefully optimized. Using these functions, we determined energies other bound state properties ground 12S-states a number ions. atomic systems considered this work include neutral Li atom nine positively charged lithiumlike ions: Be+, B2+, C3+, ..., Na8+, Mg9+. Our are used determine hyperfine structure splitting field shifts some lithium-like explicit formulas Q−1 expansion derived total systems.