The potential of the ground state of NaRb

Abstract

The X${}^1{\Sigma }^{+}$ state of NaRb was studied by Fourier transform spectroscopy. An accurate potential energy curve was derived from more than 8800 transitions in isotopomers ${}^{23}$Na${}^{85}$Rb and ${}^{23}$Na${}^{87}$Rb. This potential reproduces the experimental observations within their uncertainties of 0.003 \rcm to 0.007 \rcm. The outer classical turning point of the last observed energy level ($v^{\prime \prime }=76$, $J^{\prime \prime }=27$) lies at $\approx 12.4$ Å, leading to a energy of 4.5 \rcm below the ground state asymptote.

8 pages, 6 figures and 2 tables

References in corpus (5)

• Two-species mixture of quantum degenerate Bose and Fermi gases
• High-precision calculations of van der Waals coefficients for heteronuclear alkali-metal dimers
• Accurate relativistic many-body calculations of van der Waals coefficients C_8 and C_10 for alkali-metal dimers
• Experimental study of the Ca2 1S+1S asymptote
• Calculation of the interspecies s-wave scattering length in an ultracold Na-Rb vapor

Cited by in corpus (10)

• Calculation of accurate permanent dipole moments of the lowest ${}^{1,3}{\Sigma }^{+}$ states of heteronuclear alkali dimers using extended basis sets
• Formation and interactions of cold and ultracold molecules: new challenges for interdisciplinary physics
• Observation of Feshbach resonances between ultracold Na and Rb atoms
• Hyperfine structure of alkali-metal diatomic molecules
• Long-range interactions between polar alkali-metal diatoms in external electric fields
• Diatomic molecules of alkali-metal and alkaline-earth-metal atoms: interaction potentials, dipole moments, and polarizabilities
• Scattering parameters for cold-Li-Rb and Na-Rb collisions derived from variable phase theory
• High Resolution Molecular Spectroscopy for Producing Ultracold Absolute Ground-State ${}^{23}$Na${}^{87}$Rb Molecules
• Long-range interactions between ultracold atoms and molecules
• Optimization of the Femtosecond Laser Impulse for Excitation and the Spin-Orbit Mediated Dissociation in the NaRb Dimer