Theory for ultrafast energy transfer in photosynthesis

Photosynthesis has attracted much attention due to its extremely high energy transfer efficiency in the primary light capture stage. Numerical simulations based on energy transfer theory are helpful in exploring the physical mechanisms behind the dynamics of energy transfer. This article starts from the process of photosynthesis and explains the specific contents of two classical energy transfer theories, namely coherent and incoherent theories. Based on these theories, we discuss the numerical simulation methodology of perturbation approximation on the Fenna-Matthews-Olson (FMO) complex model. Finally, we compare the non-perturbation results with the perturbation results and further explore some energy transfer mechanisms. This work has the potential to stimulate ideas on attaining carbon neutrality through a more efficient photosynthesis process.