Abstract
The van der Waals interaction energy of two hydrogen atoms at large internuclear distances is discussed by the use of a linear variation function. By including in the variation function, in addition to the unperturbed wave function, 26 terms for the dipole-dipole interaction, 17 for the dipole-quadrupole interaction, and 26 for the quadrupole-quadrupole interaction, the interaction energy is evaluated as in which , with the internuclear distance. Some properties of the functions , which are orthogonal for the volume element , are discussed, and their usefulness in atomic problems is pointed out.
- Received 18 March 1935
DOI:https://doi.org/10.1103/PhysRev.47.686
©1935 American Physical Society