11 citations · 27 across the 7 of their papers we have counts for
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physics.chem-ph2023★ 6 cited
Second-order adiabatic connection: The theory and application to two electrons in a parabolic confinement
Andreas Savin, Jacek Karwowski
The adiabatic connection formalism, usually based on the first-order perturbation theory, has been generalized to an arbitrary order. The generalization stems from the observation…
physics.chem-ph2023★ 1 cited
Erfonium: A Hooke Atom with Soft Interaction Potential
Jacek Karwowski, Andreas Savin
Properties of erfonium, a Hooke atom with the Coulomb interaction potential replaced by a non-singular potential are investigated. The structure of the Hoo…
physics.chem-ph2023★ 6 cited
Correcting models with long-range electron interaction using generalized cusp conditions
Andreas Savin, Jacek Karwowski
Sources of energy errors resulting from the replacement of the physical Coulomb interaction by its long-range approximation are explored. It is demonstrated t…