CORRELATION OF 2 WEAKLY ATTRACTIVE PARTICLES ON A SPHERE

We simulate the behavior of two weakly attractive atoms, either spin-polarized hydrogen atoms or He3 atoms, on a He4 cluster by examining the angular correlation of the atoms as they move on the surface of a sphere. We have calculated converged energy levels, wave functions, and reduced densities (J)(12) for the low-lying states of these two systems. We also give the oscillator strengths for several transitions between low-lying states for the case of spin-polarized hydrogen. The energy levels can be arranged in patterns reminiscent of the rovibrational levels of a linear triatomic molecule, but the reduced densities differ significantly from those predicted by the molecular model. The lowest state for two He3 atoms on a sphere of radius 13.0 bohr is bound, with E=-0.031 90 cm-1. © 1990 The American Physical Society.