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Proceedings Paper

Decoherence vs. Coulombic interaction in quantum systems with exciton transfer
Author(s): Miloslav Pojsl; Pavel Herman; Ivan Barvik; Martin Petrek
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Paper Abstract

We investigate exciton transfer and relaxation in totally asymmetric trimer modelling energy transfer from the donor to acceptor molecule through molecular medium (DMA complex). For simplicity our model incorporates only one medium molecule. We suppose the strong coupling limit of the exciton transfer in which (Coulombic) interaction between acting molecules of our DMA system is mainly stronger than the interaction of the exciton with a thermal bath. Using simplified apek's convolution-less equations in the second order in the exciton-bath interaction for the whole exciton density matrix we investigate the time dependence of the occupation probabilities of the molecules of our system. Influence of the differnece in local energies of acting molecules as well as in interaction between donor, medium and acceptor molecules are discussed. Role of the non-Markovian effects in the description of the bath is presented.

Paper Details

Date Published: 23 March 2005
PDF: 7 pages
Proc. SPIE 5777, XV International Symposium on Gas Flow, Chemical Lasers, and High-Power Lasers, (23 March 2005); doi: 10.1117/12.611236
Show Author Affiliations
Miloslav Pojsl, Joint Lab. of Optics, Palachy Univ. (Czech Republic)
Institute of Physics (Czech Republic)
Pavel Herman, Univ. of Hradec Kralove (Czech Republic)
Ivan Barvik, Charles Univ. (Czech Republic)
Martin Petrek, Masaryk Univ. (Czech Republic)

Published in SPIE Proceedings Vol. 5777:
XV International Symposium on Gas Flow, Chemical Lasers, and High-Power Lasers
Jarmila Kodymova, Editor(s)

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