title: Ab initio relativistic calculation of the RbCs molecule.
abstract: We apply the relativistic configuration-interaction valence-bond method to calculate various characteristics of the alkali-metal RbCs dimer. These include the electronic potentials and transition dipole moments between the ground and first excited states and permanent dipole moments of the X 1sigma+ and a 3sigma+ states of the ground configuration. In addition, we estimate the lifetime of the rovibrational levels of the X state due to blackbody radiation. These data can help experimentalists to optimize photoassociative formation of ultracold RbCs molecules and their longevity in a trap or in an optical lattice. Extended basis sets, constructed from Dirac-Fock and Sturm's orbitals, have been used to ensure convergence of our calculations. We compare our data with other theoretical and experimental results when they were available.
authors.affiliation: Department of Physics, Temple University, Philadelphia, Pennsylvania 19122, USA. svetlana.kotochigova@nist.gov
authors.forename: S
authors.initials: S
authors.lastname: Kotochigova
authors.forename: E
authors.initials: E
authors.lastname: Tiesinga