title: Control scheme of nonadiabatic transitions with the dynamical shift of potential curve crossing.
abstract: We investigate how the nuclear dynamics at an avoided crossing is affected and can be controlled by the introduction of a laser field whose cycle is comparable to the time-scale of the nuclear dynamics. By introducing the concepts of light-induced effective potential energy curves and dynamical avoided crossing, we describe the laser controlled nuclear dynamics and present basic control scenarios, giving a detailed explanation of the underlying dynamical mechanisms. The scenarios presented allow for examples to understand from a different perspective the results of dynamic Stark control experiments. The proposed interpretation is applied to the laser-controlled nonadiabatic dynamics between the two lowest (1)Σ(+) states of LiF, where the usefulness of the concepts developed is elucidated.
authors.affiliation: Theoretische Chemie, Universität Heidelberg, Im Neuneheimer Feld 229, 69120 Heidelberg, Germany and Department of Basic Science, Graduate School of Arts and Sciences, The University of Tokyo, Komaba, 153-8902 Tokyo, Japan.
authors.forename: Simona
authors.initials: S
authors.lastname: Scheit
authors.affiliation: Department of Basic Science, Graduate School of Arts and Sciences, The University of Tokyo, Komaba, 153-8902 Tokyo, Japan.
authors.forename: Yasuki
authors.initials: Y
authors.lastname: Arasaki
authors.affiliation: Department of Basic Science, Graduate School of Arts and Sciences, The University of Tokyo, Komaba, 153-8902 Tokyo, Japan.
authors.forename: Kazuo
authors.initials: K
authors.lastname: Takatsuka
mesh_terms: D004583:Electrons; D004735:Energy Transfer; D007834:Lasers; D009678:Nuclear Energy