Searching for many-body effects and Efimov states in very weakly bound triatomics: HeNeH⁻and HeNeH

The weakly bound states and resonances of the BeHe2 triatomic system

“…12,13,17 In the present calculation, we performed calculations at series values of the parameter λ to obtain the λ dependence of the 3B bound energy level together with the relevant energies of the 2B systems. The purpose is to see whether, within a realistic range of variation of λ, we could find states having Efimov characteristics.…”

“…13 are the expect values of internuclear distances and R is average magnitude of hyperradius. (N DV R ,N μ ,L max )…”

Binding He atoms to hydrogen moieties: quantum features from ultraweak interactions

“…It therefore becomes of prime interest to provide and collect as much data as possible on the quantitative knowledge of the strength and extension of the weak VdW forces which act within cluster structures that contain a variable number of helium atoms, generally in the bosonic variant, and an atomic or molecular dopant. In order to make progress in this direction one needs to be able to describe as realistically as possible their spatial arrangements, invariably characterized by very strongly anharmonic internal motions and by large values of their zero-point energies [7].…”