三聚体
激发态
激发
细菌叶绿素
主方程
化学
量子
化学物理
物理
分子物理学
原子物理学
能量转移
量子主方程
量子力学
光合作用
二聚体
核磁共振
生物化学
作者
Gerhard Ritschel,Jan Roden,Walter T. Strunz,Alán Aspuru‐Guzik,Alexander Eisfeld
摘要
Energy transfer in the photosynthetic Fenna–Matthews–Olson (FMO) complex of green sulfur bacteria is studied numerically taking all three subunits (monomers) of the FMO trimer and the recently found eighth bacteriochlorophyll (BChl) molecule into account. The coupling to the non-Markovian environment is treated with a master equation derived from non-Markovian quantum state diffusion. When the excited-state dynamics is initialized at site eight, which is believed to play an important role in receiving excitation from the main light harvesting antenna, we see a slow exponential-like decay of the excitation. This is in contrast to the oscillations and a relatively fast transfer that usually occurs when initialization at sites 1 or 6 is considered. We show that different sets of electronic transition energies can lead to large differences in the transfer dynamics and may cause additional suppression or enhancement of oscillations.
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