Polyatomic candidates for cooling of molecules with lasers from simple theoretical concepts

摘要

A rational approach to identify polyatomic molecules that appear to bepromising candidates for direct Doppler cooling with lasers is outlined.First-principle calculations for equilibrium structures and Franck--Condonfactors of selected representatives with different point-group symmetries(including chiral non-symmetric group C$_1$) have been performed and highpotential for laser-cooling of these molecules is indicated.