| External electric fields represent a distinct tool in order to control the motion of dipolar molecules. Here a review of selected aspects of the influence of a homogeneous electric field on the rovibrational dynamics is given. By solving the full rovibrational problem and developing effective Hamiltonian a detailed understanding of the rotational and vibrational state-dependent hybridization in the presence of the field is provided. Coupling to the vibrational motion is enhanced in case of strong fields, leading to a squeezing of the wave functions that depends on the electric dipole moment function and in case of avoided crossings leading to a strong distortion of the rovibrational dynamics. Radiative transitions are analyzed and it is demonstrated that a regime and a set of rovibrational states exists within which a controlled nuclear dynamics takes place. This offers the possibility of changing the nuclear configurations smoothly by applying the corresponding radiation. |
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