Properties of metastable alkaline-earth-metal atoms calculated using an accurate effective core potential

Details Properties of metastable alkaline-earth-metal atoms calculated using an accurate effective core potential Properties of metastable alkaline-earth-metal atoms calculated using an accurate effective core potential

2003-12-04

arxiv.org/abs/physics/0312033v1

Physics

Atomic Physics

13 pages, 9 tables

Scientific paper

10.1103/PhysRevA.69.042510

The first three electronically excited states in the alkaline-earth-metal atoms magnesium, calcium, and strontium comprise the (nsnp) triplet P^o_J (J=0,1,2) fine-structure manifold. All three states are metastable and are of interest for optical atomic clocks as well as for cold-collision physics. An efficient technique--based on a physically motivated potential that models the presence of the ionic core--is employed to solve the Schroedinger equation for the two-electron valence shell. In this way, radiative lifetimes, laser-induced clock shifts, and long-range interaction parameters are calculated for metastable Mg, Ca, and Sr.

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