Volume 83, Number 4, August 2008
Article Number 43001
Number of page(s) 6
Section Atomic, Molecular and Optical Physics
Published online 04 August 2008
EPL, 83 (2008) 43001
DOI: 10.1209/0295-5075/83/43001

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

R. González-Férez1, M. Mayle2, P. Sánchez-Moreno1 and P. Schmelcher2, 3

1  Instituto "Carlos I" de Física Teórica y Computacional and Departamento de Física Atómica Molecular y Nuclear, Universidad de Granada - E-18071 Granada, Spain, EU
2  Theoretische Chemie, Physikalisch-Chemisches Institut, Universität Heidelberg - Im Neuenheimer Feld 229, D-69120 Heidelberg, Germany, EU
3  Physikalisches Institut, Universität Heidelberg - Philosophenweg 12, D-69120 Heidelberg, Germany, EU

received 16 May 2008; accepted in final form 25 June 2008; published August 2008
published online 4 August 2008

A comparative study of the effect of a static homogeneous electric field on the rovibrational spectra of several polar dimers in their ${\rm X}^{1}\Sigma ^{+}$ 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$\hbox{--} $induced energy shifts, orientation, alignment, and angular-motion hybridization are analyzed up to high vibrational excitations close to the dissociation threshold.

33.20.-t - Molecular spectra.
32.60.+i - Zeeman and Stark effects.
33.20.Vq - Vibration-rotation analysis.

© EPLA 2008