Персона: Руцкой, Богдан Викторович
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Институт ядерной физики и технологий
Цель ИЯФиТ и стратегия развития - создание и развитие научно-образовательного центра мирового уровня в области ядерной физики и технологий, радиационного материаловедения, физики элементарных частиц, астрофизики и космофизики.
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Богдан Викторович
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- ПубликацияОткрытый доступThe Role of Bond Functions in Describing Intermolecular Electron Correlation for Van der Waals Dimers: A Study of (CH4)2 and Ne2(2024) Rutskoy, B.; Ozerov, G.; Bezrukov, D.; Руцкой, Богдан ВикторовичWe present a study of the intermolecular interactions in van der Waals complexes of methane and neon dimers within the framework of the CCSD method. This approach was implemented and applied to calculate and examine the behavior of the contracted two-particle reduced density matrix (2-RDM). It was demonstrated that the region near the minimum of the two-particle density matrix correlation part, corresponding to the primary bulk of the Coulomb hole contribution, exerts a significant influence on the dispersion interaction energetics of the studied systems. As a result, the bond functions approach was applied to improve the convergence performance for the intermolecular correlation energy results with respect to the size of the atomic basis. For this, substantial acceleration was achieved by introducing an auxiliary basis of binding functions centered on the minima of the 2-RDM. For both methane and neon dimers, this general conclusion was confirmed with a series of CCSD calculations for the 2-RDM and the correlation energies.
- ПубликацияТолько метаданныеThe effect of bond functions on intermolecular interactions for van der Waals dimers of neon, methane, and perfluoromethane(2025) Rutskoy, B. V.; Ozerov, G.; Kleshchina, N. N.; Bezrukov, D.; Руцкой, Богдан Викторович