Low-energy excitations in helium-like dimer within an exact diagonalization approach

• Published in: Физика низких температур
• Date: 2018
• Main Author: Chishko, K.A.
• Format: Article
• Language: English
• Published: Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України 2018
• Subjects: Актуальні проблеми квантових рідин та кристалів
• Online Access: https://nasplib.isofts.kiev.ua/handle/123456789/176275
• Journal Title: Digital Library of Periodicals of National Academy of Sciences of Ukraine
• Cite this: Low-energy excitations in helium-like dimer within an exact diagonalization approach / K.A. Chishko // Физика низких температур. — 2018. — Т. 44, № 10. — С. 1394-1403. — Бібліогр.: 42 назв. — англ.

The non-relativistic quantum-mechanical problem on bound states of four interacting spinless electrons moving in the Coulomb field of two attractive point centers with Z₀ = 2 spaced at fixed distance R₀ (⁴He₂ dimer within Born–Oppenheimer–Heitler–London approximation) has been solved rigorously thro...