论文标题
对使用宏观量子模型对两分音光合系统的能量传递效率进行了研究
An investigation into the energy transfer efficiency of a two-pigment photosynthetic system using a macroscopic quantum model
论文作者
论文摘要
尽管有几种适用于光合系统的效率衡量标准，但这些系统的精确程度尚未完全确定。在生物环境中引入一个有效的模型，以实现轻度收获复合物的动力学，这是研究此类系统的主要目的。在这里，我们研究了两种色素系统对与振荡环境相互作用的传输现象的宏观量子行为的影响。我们使用二阶扰动理论来使用非主机方程方法计算二维哈密顿量的激子状态的时间依赖性人群。我们的结果表明，量子效率相对于宏观参数h纯粹是稳健的，但是宏观宏观性与色素色素相互作用能量的比率可以视为可以在给定时间控制能量传递效率的参数。因此，所假定光合系统的动力学行为和量子效率可能会受到系统宏观行为的变化的影响。
Despite several different measures of efficiency that are applicable to the photosynthetic systems, a precise degree of efficiency of these systems is not completely determined. Introducing an efficient model for the dynamics of light-harvesting complexes in biological environments is a major purpose in investigating such systems. Here, we investigate the effect of macroscopic quantum behavior of a system of two pigments on the transport phenomena in this system model which interacts with an oscillating environment. We use the second-order perturbation theory to calculate the time-dependent population of excitonic states of a two-dimensional Hamiltonian using a non-master equation approach. Our results demonstrate that the quantum efficiency is robust with respect to the macroscopicity parameter h solely, but the ratio of macroscopicity over the pigment-pigment interaction energy can be considered as a parameter that may control the energy transfer efficiency at a given time. So, the dynamical behavior and the quantum efficiency of the supposed photosynthetic system may be influenced by a change in the macroscopic behavior of the system.
