Abstract
We present theoretical modelling of the nonlinear optical response of the bacterial reaction center incorporating electron and energy transfer on equal footing. Orthogonal polarized pulse sequences allow to dissect kinetic components in real space.
Highlights
We present simulations on a tight-binding model of the bacterial reaction center B. viridis, which incorporate polaron effects allowing to describe energy transfer (EET) and charge separation (CS)
We present simulations on a tight-binding model of the bacterial reaction center B. viridis, which incorporate polaron effects allowing to describe EET and CS
The model reduces to the Frenkel exciton model if only on-site excitations are considered, we consider the charge separated states of the strongly coupled special pair (P-BClM, P-BClL) and within the active L-branch (BClL, BPL) of the reaction center B. viridis (Fig.1, right)
Summary
We present simulations on a tight-binding model of the bacterial reaction center B. viridis, which incorporate polaron effects allowing to describe EET and CS. At the heart of photosynthesis are excitation energy transfer (EET) and charge separation (CS) within optimized reaction centers (RC) in bacteria and plants. Simulations on photosynthetic complexes commonly focus on EET based on the Frenkel exciton Hamiltonian [1].
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