119 citations · 184 across the 3 of their papers we have counts for
3 papers
physics.atom-ph2013★ 33 cited
A Partitioned Correlation Function Interaction approach for describing electron correlation in atoms
S. Verdebout, P. Rynkun, P. Jönsson +3
Traditional multiconfiguration Hartree-Fock (MCHF) and configuration interaction (CI) methods are based on a single orthonormal orbital basis (OB). For atoms with complicated shell…
physics.atom-ph2009★ 32 cited
Exploring Biorthonormal Transformations of Pair-Correlation Functions in Atomic Structure Variational Calculations
S. Verdebout, P. Jönsson, G. Gaigalas +2
Multiconfiguration expansions frequently target valence correlation and correlation between valence electrons and the outermost core electrons. Correlation within the core is often…
physics.atom-ph2004★ 119 cited
An efficient approach for spin-angular integrations in atomic structure calculations
G. Gaigalas, Z. Rudzikas, C. Froese Fischer
A general method is described for finding algebraic expressions for matrix elements of any one- and two-particle operator for an arbitrary number of subshells in an atomic configur…