Physics – Biological Physics
Scientific paper
2011-10-07
New J. Phys. 14 023018 (2012)
Physics
Biological Physics
updated text and references, corrected figures 4-7, 20 pages, 7 figures
Scientific paper
10.1088/1367-2630/14/2/023018
Recent experimental observations of time-dependent beatings in the two-dimensional echo-spectra of light-harvesting complexes at ambient temperatures have opened up the question whether coherence and wave-like behaviour plays a significant role in photosynthesis. We perform a numerical study of the absorption and echo-spectra of the Fenna-Matthews-Olson (FMO) complex in chlorobium tepidum and analyse the requirements in the theoretical model needed to reproduce beatings in the calculated spectra. The energy transfer in the FMO pigment-protein complex is theoretically described by an exciton Hamiltonian coupled to a phonon bath which account for the pigments electronic and vibrational excitations respectively. We use the hierarchical equations of motions method to treat the strong couplings in a non-perturbative way. We show that the oscillations in the two-dimensional echo-spectra persist in the presence of thermal noise and static disorder.
Hein Birgit
Kramer Tobias
Kreisbeck Christoph
Rodriguez Mirta
No associations
LandOfFree
Modelling of Oscillations in Two-Dimensional Echo-Spectra of the Fenna-Matthews-Olson Complex does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Modelling of Oscillations in Two-Dimensional Echo-Spectra of the Fenna-Matthews-Olson Complex, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Modelling of Oscillations in Two-Dimensional Echo-Spectra of the Fenna-Matthews-Olson Complex will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-133045