Bichromatic fluctuations in symmetric double well potentials: Localization and control of tunneling

► Spatial symmetry preserving bichromatic fluctuations lead to control of tunneling in SDWP. ► The temporal nature of the fluctuations is an important ingredient for control. ► Commensurability of component frequencies and their intensities are important control parameters. ► Complete localization is observed only in the presence of spatial symmetry broken perturbation. ► Analysis based on TDHFT and Floquet theory match.