Four-body singlet potential energy surface for reactions of calcium monofluoride

Abstract

A full six-dimensional Born-Oppenheimer singlet potential energy surface is constructed for the reaction CaF + CaF $\to$ CaF${}_2$ + Ca using a multireference configuration interaction (MRCI) electronic structure calculation. The {\it ab initio} data thus calculated are interpolated by Gaussian process (GP) regression. The four-body potential energy surface features one $D_{2h}$ global minimum and one $C_s$ local minimum, connected by a barrierless transition state that lends insight to the reaction mechanism. This surface is intended to be of use in understanding ultracold chemistry of CaF molecules.

Submitted to Phys. Rev. A

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Cited by in corpus (6)

• Shielding collisions of ultracold CaF molecules with static electric fields
• Magneto-optical trapping of aluminum monofluoride
• Molecular dynamics-driven global tetra-atomic potential energy surfaces: Application to the AlF dimer
• The Li + CaF $\to$ Ca + LiF chemical reaction under cold conditions
• CaF+CaF interactions in the ground and excited electronic states: implications for collisional losses
• Strongly dipolar molecular Bose-Einstein condensates: From few- to many-body physics