Erratum: “The $X^{1}\Sigma ^{+}_{g}$X1Σg+ ground state of Mg2 studied by Fourier-transform spectroscopy” [J. Chem. Phys. 138, 094303 (2013)]

Selective control of photoassociation of alkaline earth dimers: A theoretical study

“…The proposed laser drive transitions to target states for photoassociation of alkaline earth dimers at length Be 2 : 353.8 nm, Mg 2 : 373.2 nm, Ca 2 : 648.5 nm, Sr 2 : 511.0 nm, Ba 2 : 742.7 nm are obtained, ranging from UV to IR. That is in agreement with the measured results λ = 350 nm for Mg 2 [21] and λ = 657 nm for Ca 2 [47] from experimental photoassociation process.…”

“…And for the A 1 Σ + u state of Be 2 , all spectroscopic constants are in good agreement, except for that in reference [25], where R e and ω e χ e are overestimated to be 0.094 Bohr and 0.51 cm −1 , respectively; ω e and D e are underestimated to be 16.2 and 466 cm −1 with respect to the experiment. [45] For Mg 2 , good agreement is found between our results and the recent experimental values [47,48] and calculation [25] with the MRCI method, for example, the errors of ω e and ω e χ e are within 1.2% and 9.4%, respectively. For Ca 2 , the calculations of the X 1 Σ + g state by Yang and Wang [49] and Mosyagin et al [19] with the available Configuration Interaction with Single, Double, and Triple Excitations including our MRCI+Q results are more consistent with the experimental values, [50,51] except for reference [27] using quasi-degenerate perturbation theory by Bouissou et al whose calculated ω e , ω e χ e , and D e are all underestimated to be 3.3, 0.28, and 152 cm −1 with respect to experimental determinations.…”

Empirically constructed dynamic electric dipole polarizability function of magnesium and its applications

“…In Ref. [2] it was found that a 2% uncertainty in C 6 leads to an uncertainty of no more than 0.3 nm in the scattering length for 24 Mg 2 .…”

“…Magnesium is an abundant element currently of interest in several applications. Analysis of photo association spectroscopy for the Mg dimer [1,2] indicates that the s-wave scattering length for collisions between two ground state Mg atoms is positive [1], with the accuracy of the determination affected by the remnant uncertainty in the value of the atom-atom van der Waals constant [2]. (A Bose-Einstein condensate of Mg atoms has not been created experimentally, to date.)…”

The $A^{1}Σ^{+}_{u}$ + (1)$^1Π_u$ system of Mg$_2$

“…Recently we reported on new investigations of the Mg 2 UV -absorption spectrum [1]. Major motivation of the experimental efforts was a reliable characterization of the cold collision properties of ground state atoms by the molecular ground state X 1 Σ + g , which were derived from the long range behaviour of the potential energy curve (PEC) and given in the form of scattering lengths.…”