Target states and control of molecular alignment in a dissipative medium
Résumé
We investigate how and to what extent molecular alignment can be controlled in a dissipative medium by a suitable train of laser pulses. We focus primarily on the extension of a scheme of control originally constructed for unitary evolution. The procedure is applied to control the alignment of CO molecules in an Ar gas. The parameters of the train of kicks-i.e., the intensity of each kick and the delay between them-are either obtained by a systematic procedure (maximum strategy) or by optimization by evolutionary algorithms.