3 papers
physics.chem-ph2026
Theoretical study of electronic structure and spectroscopic properties of the TlO molecule
Alexander V. Oleynichenko, Yuriy A. Demidov
The electronic structure and properties of the thallium monoxide (TlO) molecule, as well as its cation and anion, have been systematically studied using both the relativistic Fock-…
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.comp-ph2025
On the rank-reduced relativistic coupled cluster method
Alexander V. Oleynichenko, Artem S. Rumiantsev, Andrei Zaitsevskii +1
An efficiency of the Tucker decomposition of amplitude tensors within the single-reference relativistic coupled cluster method with single and double excitations (RCCSD) was studie…