Spectroscopic properties of the molecular ions BeX^+ (X=Na, K, Rb): Forming cold molecular ions from an ion-atom mixture by stimulated Raman adiabatic process

Abstract

In this theoretical work, we calculate potential energy curves, spectroscopic pa- rameters and transition dipole moments of molecular ions BeX^+ (X=Na, K, Rb) composed of alkaline ion Be and alkali atom X with a quantum chemistry approach based on the pseudopotential model, Gaussian basis sets, effective core polarization potentials, and full configuration interaction (CI). We study in detail collisions of the alkaline ion and alkali atom in quantum regime. Besides, we study the possibility of the formation of molecular ions from the ion-atom colliding systems by stimu- lated Raman adiabatic process and discuss the parameters regime under which the population transfer is feasible. Our results are important for ion-atom cold collisions and experimental realization of cold molecular ion formation.

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Cited by in corpus (4)

• Cold hybrid ion-atom systems
• Cold collisions between alkali and alkaline-earth hetero nuclear atom-ion system Li + Ba${}^{+}$
• Characterization of the electronic ground state of Mg${}_2^{+}$ by PFI-ZEKE photoelectron spectroscopy
• Multichannel Quantum Defect Theory with Numerical Reference Functions: Applications to Cold Atomic Collisions