Original scientific paper

On the Robustness of Low-frequency Laser Control Schemes for Proton Transfer in Thioacetylacetone

Iva Tatić ; Department of Chemistry, Faculty of Science, University of Zagreb, Marulićev trg 19, 10000 Zagreb, Croatia
Nađa Došlić ; Department of Physical Chemistry, Ruđer Bošković Institute, Bijenička 54, 10000 Zagreb, Croatia

Abstract

The paper investigates quantum control of the proton transfer reaction in a two-dimensional model system using terahertz (THz) laser fields. The model potential, tailored to MP2 data for thioacetylacetone, comprises the proton transfer and the heavy atom coordinates. Two distinct mechanisms of proton transfer are investigated: the resonant versus the tunneling one. The efficiency of laser control in both cases is tested against the instability of pulse characteristics. The study shows that while the resonant scheme allows efficient control for a large range of field parameters, the tunneling scheme is very sensitive to the pulse characteristics, and therefore experimentally hardly realizable.

Keywords

low-frequency laser; proton transfer; thioacetylacetone

Hrčak ID:

102649

URI

https://hrcak.srce.hr/102649

Publication date:

31.5.2004.

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