3 papers
physics.atom-ph2025
Ionization potential and electron affinity of superheavy element 119: relativistic high-order coupled cluster study with QED corrections
A. R. Saetgaraev, L. V. Skripnikov, I. I. Tupitsyn +5
We report a highly accurate \textit{ab initio} study of the ionization potential (IP) and electron affinity (EA) of element 119. Electronic correlation are treated within the relat…
physics.atom-ph2024
Orbital collapse and dual states of the electrons in superheavy elements
I. I. Tupitsyn, I. M. Savelyev, Y. S. Kozhedub +5
The problem of orbital collapse of the and electrons in atoms of superheavy elements (SHE) is considered. Previously, the presence of the orbital collapse was established…
physics.chem-ph2023
The ground-state potential and dipole moment of carbon monoxide: contributions from electronic correlation, relativistic effects, QED, adiabatic, and non-adiabatic corrections
D. P. Usov, Y. S. Kozhedub, V. V. Meshkov +7
The ground X1Σ+ state potential energy curve (PEC) and dipole moment curve (DMC) of CO molecule have been revisited within the framework of the relativistic coupled-cluster approac…