Abstract
We present third-order many-body perturbation theory calculations of the Lennard-Jones coefficient for the alkali-metal atoms lithium, sodium, potassium, rubidium, cesium, and francium. All-order singles-doubles calculations of are also presented for lithium, sodium, and potassium. For lithium and sodium the present values of are compared with other theoretical and semiempirical values.
- Received 7 November 1997
DOI:https://doi.org/10.1103/PhysRevA.57.2629
©1998 American Physical Society