Light-induced conical intersection effect enhancing the localization of molecules in optical lattices

Abstract

The cold weakly bound ${\mathrm{Rb}}_{2}$ molecule dressed by a standing linear polarized laser wave is investigated. In such a case the light-induced conical intersections (LICIs) occur. We demonstrate that when the LICI conditions are fulfilled the transition from the weakly trapped rubidium dimer in the red-detuned optical lattice to the strongly trapped rubidium dimer in the blue-detuned optical lattice takes place. A significant localization enhancement of the molecule is observed.