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Photosynthetic light harvesting is a paradigmatic example for quantum effects in biology. In this work, we review studies on quantum coherence effects in the LH2 antenna complex from purple bacteria to demonstrate how quantum mechanical rules play important roles in the speedup of excitation energy transfer, the stabilization of electronic excitations, and the robustness of light harvesting in photosynthesis...
In photosynthesis light is absorbed by the light-harvesting antenna and within several tens of picoseconds transferred to the photosynthetic reaction center (RC) where an ultrafast charge separation is initiated. Photosynthetic purple bacteria employ a single reaction center. In contrast, in photosynthesis of plants, algae and cyanobacteria, two reaction centers, Photosystem II (PSII) and Photosystem...
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