论文标题
在自然不一致的光下能量转移:不对称的影响对效率的影响
Energy transfer under natural incoherent light: Effects of asymmetry on efficiency
论文作者
论文摘要
研究了在供体系统中形成的非平衡固定相干,以确定它们与能量转移到相邻反应中心的效率的关系。发现二聚体中不对称的影响通常不利于能量的转移。检查了四种类型的系统,是由局部捕获,DELACALIGER(FORSTER)捕获,特征态dephasing和现场基础dephasing的组合产生的。在现场基础的情况下,在弱二聚体耦合条件下,激发二聚体状态和环境之间的相互作用与环境之间的相互作用产生了离心效应。此外,相干和相关通量的性质是根据途径干扰效应来解释的。此外,无论考虑的情况如何,能量 - 元基质中的实际部分和虚拟部分的比率在稳态极限下趋向于恒定值。
The non-equilibrium stationary coherences that form in donor-acceptor systems are investigated to determine their relationship to the efficiency of energy transfer to a neighboring reaction center. It is found that the effects of asymmetry in the dimer are generally detrimental to the transfer of energy. Four types of systems are examined, arising from combinations of localized trapping, delocalized (Forster) trapping, eigenstate dephasing and site basis dephasing. In the cases of site basis dephasing the interplay between the energy gap of the excited dimer states and the environment is shown to give rise to a turnover effect in the efficiency under weak dimer coupling conditions. Furthermore, the nature of the coherences and associated flux are interpreted in terms of pathway interference effects. In addition, regardless of the cases considered, the ratio of the real part and the imaginary part of the coherences in the energy-eigenbasis tends to a constant value in the steady state limit.