High-precision calculations of van der Waals coefficients for heteronuclear alkali-metal dimers
A. Derevianko, J. F. Babb, A. Dalgarno
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%.
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