High-precision calculations of van der Waals coefficients for heteronuclear alkali-metal dimers

Abstract

Van der Waals coefficients for the heteronuclear alkali-metal dimers of Li, Na, K, Rb, Cs, and Fr are calculated using relativistic ab initio methods augmented by high-precision experimental data. We argue that the uncertainties in the coefficients are unlikely to exceed about 1%.

11 pages, 2 figs, graphicx.sty