High-accuracy relativistic many-body calculations of van der Waals coefficients C_6 for alkaline-earth atoms

Abstract

Relativistic many-body calculations of van der Waals coefficients C_6 for dimers correlating to two ground state alkaline-earth atoms at large internuclear separations are reported. The following values and uncertainties were determined : C_6 = 214(3) for Be, 627(12) for Mg, 2221(15) for Ca, 3170(196) for Sr, and 5160(74) for Ba in atomic units.

5 pages, submitted to Phys. Rev. A

References in corpus (3)

• Bose-Einstein Condensation of Metastable Helium
• High-precision calculations of van der Waals coefficients for heteronuclear alkali-metal dimers
• High-precision calculations of electric-dipole amplitudes for transitions between low-lying levels of Mg, Ca, and Sr

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