James F. Babb

High-Precision Calculations of Dispersion Coefficients, Static Dipole Polarizabilities, and Atom-Wall Interaction Constants for Alkali-Metal Atoms

The van der Waals coefficients for the alkali-metal atoms from Na to Fr interacting in their ground states are calculated using relativistic ab initio methods. The accuracy of the calculations is estimated by also evaluating atomic static electric-dipole polarizabilities and coefficients for the interaction of the atoms with a perfectly conducting wall. The results are in excellent agreement with the latest data from studies of magnetic field induced Feshbach resonances in ultracold collisions of Na and of Rb atoms. For Cs we provide critically needed data for ultracold collision studies.

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

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%.

Long-range interactions of metastable helium atoms

The electric dipole, quadrupole, and octupole polarizabilities of a helium atom and the associated dispersion coefficients for the interaction of two helium atoms are calculated for the atomic

Long-range interactions of lithium atoms

n=2

Casimir-Polder interaction between an atom and a cavity wall under the influence of real conditions

singlet and triplet states, respectively,

RETARDED LONG-RANGE POTENTIALS FOR THE ALKALI-METAL ATOMS AND A PERFECTLY CONDUCTING WALL

mathrm{He}(2{}^{1}S)

Casimir Effects in Atomic, Molecular, and Optical Physics

and

Long-range atom-surface interactions for cold atoms

mathrm{He}(2{}^{3}S)

Retardation (Casimir) energy shifts for Rydberg helium-like low-Z ions

. The calculations utilize highly accurate, variationally determined, wave functions composed of doubled basis sets. The effects of retardation due to the finite speed of light are calculated for the dispersion potentials of two

Dependence of the Casimir-Polder interaction between an atom and a cavity wall on atomic and material properties

mathrm{He}(2{}^{1}S)