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Laser control for the optimal evolution of pure quantum states

D. Sugny·A. Keller·O. Atabek·D. Daems·C. M. Dion·S. Guérin·H. R. Jauslin
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Abstract

Starting from an initial pure quantum state, we present a strategy for reaching a target state corresponding to the extremum (maximum or minimum) of a given observable. We show that a sequence of pulses of moderate intensity, applied at times when the average of the observable reaches its local or global extremum, constitutes a strategy transferable to different control issues. Among them, post-pulse molecular alignment and orientation are presented as examples. The robustness of such strategies with respect to experimentally relevant parameters is also examined.

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D. Sugny, A. Keller, O. Atabek, D. Daems, C. M. Dion, S. Guérin, H. R. Jauslin. 2005-10-02. Laser control for the optimal evolution of pure quantum states. https://doi.org/10.1103/physreva.71.063402

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