title: Stabilizing coherent destruction of tunneling.
abstract: The localization of a tunneling particle by means of an oscillating external field is examined for an arbitrary doublet of tunneling states. The condition of degenerate Floquet levels, required for localization in a symmetric system, can be substantially relaxed for tunneling systems with broken symmetry. A synergistic effect of dynamic and static asymmetry is found, which extends the localization regime substantially. This generalization equally applies to tunneling systems coupled to a dissipative environment.
authors.affiliation: Department of Chemistry and Department of Physics, University of Southern California, Los Angeles, California 90089-0482, USA.
authors.forename: J T
authors.initials: JT
authors.lastname: Stockburger