Abstract
The correlated exciton-vibrational dynamics of the Fenna-Matthews-Olson (FMO) complex is studied using Multi-layer Multi-configuration Time-dependent Hartree (ML-MCTDH) wavepacket propagation. Exciton populations and coherences are shown to be sensitive to the details of the spectral density.
Highlights
The FMO pigment-protein complex has taken a prominent role for our understanding of dynamics and spectroscopy of electronic energy transfer in photosynthesis
We notice that the overall behavior is rather similar to previous reduced density matrix calculations [3,4], i.e. there is a beating between sites 1 and 2, which is damped on the time scale of about 1 ps, along with a decay into site 3 whose dynamics doesn’t show any oscillations
[10], it was argued that the total Huang-Rhys factor determines the effective decays rates, whereas vibrational and vibronic excitation are sensitive towards the actual shape of the spectral density (SD)
Summary
The FMO pigment-protein complex has taken a prominent role for our understanding of dynamics and spectroscopy of electronic energy transfer in photosynthesis. The correlated exciton-vibrational dynamics of the FennaMatthews-Olson (FMO) complex is studied using Multi-layer Multiconfiguration Time-dependent Hartree (ML-MCTDH) wavepacket propagation. Exciton populations and coherences are shown to be sensitive to the details of the spectral density.
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