Comparative study of the rovibrational properties of heteronuclear alkali dimers in electric fields

A comparative study of the effect of a static homogeneous electric field on the rovibrational spectra of several polar dimers in their X-1 Sigma(+) electronic ground state is performed. Focusing upon the rotational ground state within each vibrational band, results for energies and various expectation values are presented. For moderate field strengths the electric-field-induced energy shifts, orientation, alignment, and angular-motion hybridization are analyzed up to high vibrational excitations close to the dissociation threshold. Copyright (c) EPLA, 2008.