Properties of wave packets deduced from quantum control fitness landscapesP. Marquetand1, P. Nuernberger2, G. Vogt2, T. Brixner1, 2 and V. Engel1
1 Universität Würzburg, Institut für Physikalische Chemie and Röntgen Research Center for Complex Material Systems - Am Hubland, 97074 Würzburg, Germany
2 Universität Würzburg, Physikalisches Institut and Röntgen Research Center for Complex Material Systems Am Hubland, 97074 Würzburg, Germany
received 25 July 2007; accepted in final form 29 September 2007; published December 2007
published online 25 October 2007
We demonstrate the versatility of shaped femtosecond dump pulses for the investigation of molecular quantum systems. Model calculations show that population is most efficiently transferred by shaped pulses. Illustrative fitness landscapes, where the excited-state population is analyzed as a function of selected laser pulse parameters, facilitate a characterization of wave packet evolution and the potential energy surfaces. A first experimental implementation is presented for retinal photoisomerization in bacteriorhodopsin.
32.80.Qk - Coherent control of atomic interactions with photons.
82.53.-k - Femtochemistry.
82.20.Kh - Potential energy surfaces for chemical reactions.
© Europhysics Letters Association 2007