Dresden 2009 – wissenschaftliches Programm

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CPP: Fachverband Chemische Physik und Polymerphysik

CPP 16: POSTERS Polyelectrolytes and Biological Systems

CPP 16.5: Poster

Dienstag, 24. März 2009, 14:00–16:30, P3

Optical Bloch equations of light harvesting nanostructuresAlexander Carmele1, •Marten Richter1, Thomas Renger2, and Andreas Knorr11Institut für Theoretische Physik, AG Nichtlineare Optik und Quantenelektronik, Technische Universität Berlin, Hardenbergstr. 36, 10623 Berlin, Germany — 2Institut für Chemie und Biochemie, Freie Universität Berlin, Takustr. 3, 14195 Berlin, Germany

Within a Bloch equation approach [1], we calculate linear and pump-test spectra of Coulomb-coupled nanostructures (like pigments in pigment-protein complexes in LHC-II or the Fenna-Matthews-Olson (FMO) complex). The theory includes Förster-coupling induced excitation transfer between the nanostructures, electron-vibrational coupling between the nanosystems and their environment as well as the interaction with external optical fields and is based on many particle Liouville and cluster-expansion techniques. Hereby, we include self-consistently the structural data for the optical transition energies of pigments in protein environments and the spectral density of exciton-vibrational coupling [3].

[1]M. Richter, Th. Renger, G. Renger, A. Knorr, J. Chem. Phys. 127, 075105 (2007)
[2]M. Richter, Th. Renger, A. Knorr, Photosyn. Res. 95, 2-3, 119 - 127 (2008)
[3]J. Adolphs, F. Müh, M. El-Amine Madjet, Th. Renger, Photosyn. Res. 95, 2-3, 197 -209 (2008)
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