CrRb: a molecule with large magnetic and electric dipole moments

Abstract

We report calculations of Born-Oppenheimer potential energy curves of the chromium-rubidium heteronuclear molecule 52Cr-87Rb, and the long-range dispersion coefficient for the interaction between ground state Cr and Rb atoms. Our calculated van der Waals coefficient (C6=1770 a.u.) has an expected error of 3%. The ground state 6Sigma+ molecule at its equilibrium separation has a permanent electric dipole moment of de (Re=3.34 A) = 2.90 D. We investigate the hyperfine and dipolar collisions between trapped Cr and Rb atoms, finding elastic to inelastic cross section ratio of 100-1000.

References in corpus (6)

• Bose-Einstein condensation of chromium
• All-Optical Production of Chromium Bose-Einstein Condensates
• Observation of Feshbach resonances in an ultracold gas of ${}^{52}$Cr
• Dipolar Relaxation in an ultra-cold Gas of magnetically trapped chromium atoms
• Collisional properties of trapped cold chromium atoms
• A two species trap for chromium and rubidium atoms

Cited by in corpus (9)

• Highly polar molecules consisting of a copper or silver atom interacting with an alkali-metal or alkaline-earth-metal atom
• Ab initio properties of the ground-state polar and paramagnetic europium-alkali-metal-atom and europium-alkaline-earth-metal-atom molecules
• Ultracold magnetically tunable interactions without radiative charge transfer losses between Ca${}^{+}$, Sr${}^{+}$, Ba${}^{+}$, and Yb${}^{+}$ ions and Cr atoms
• Prospects for ultracold polar and magnetic chromium-closed-shell-atom molecules
• Ultracold LiCr: a new pathway to quantum gases of paramagnetic polar molecules
• Magnetically tunable Feshbach resonances in ultracold gases of europium atoms and mixtures of europium and alkali-metal atoms
• Purely long-range polar molecules composed of identical lanthanide atoms
• Spin--spin interaction and magnetic Feshbach resonances in collisions of high-spin atoms with closed-shell atoms
• Van der Waals coefficients for interactions of dysprosium and erbium atoms with alkali-metal and alkaline-earth-metal atoms