Three-body nonadditive forces between spin-polarized alkali-metal atoms
作者： Pavel Soldán , Marko T. Cvitaš , Jeremy M. Hutson
DOI: 10.1103/PHYSREVA.67.054702
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摘要: Three-body nonadditive forces in systems of three spin-polarized alkali-metal atoms (Li, Na, K, Rb, and Cs) are investigated using high-level ab initio calculations. The found to be large, especially near the equilateral equilibrium geometries. For Li, they increase three-atom potential well depth by a factor 4 reduce interatomic distance 1.07 A. originate principally from chemical bonding arising sp mixing effects.
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