Equivalence of the Kobrak-Rice photoselective adiabatic passage and the Brumer-Shapiro strong field methods for control of product formation in a reaction

It is shown that the photoselective adiabatic passage approach to control of product formation in a chemical reaction proposed by Kobrak and Rice may be viewed as a high-field limit of the strong field Brumer-Shapiro scheme. It is further shown that the adiabatic passage representation provides new insight into the nature of control over chemical reactions in strong fields, and that it correctly predicts the results of physically realistic simulations of the sodium dimer. (C) 1998 American Institute of Physics. [S0021-9606(98)02325-3].