The exciton transfer between light-harvesting complex 1(LH1) and photosynthetic reaction center dimer is investigated theoretically. We assume a ring shape structure of the LH1 complex with dimer in the ring centre. The kinetic equations which describe the energy transfer between the antenna complex and reaction center dimer were derived. It was shown that the dimer does not act as a photon trap. There is a weak localization of the exciton on the dimer and there is relatively rapid back exciton transfer from dimer to antenna complex which depends on the number of the pigment molecules in the antenna ring. The relation between the rates of the exciton transfer from the antenna complex to dimer and back transfer from dimer to antenna complex has been derived.

理论上研究了捕光复合物1(LH1)与光合反应中心二聚体之间的激子转移。我们假设 LH1 复合物的环状结构在环中心具有二聚体。推导了描述天线复合物和反应中心二聚体之间能量传递的动力学方程。结果表明，二聚体不充当光子陷阱。激子在二聚体上的定位较弱，并且从二聚体到天线复合物的反激子转移相对较快，这取决于天线环中色素分子的数量。已经推导了激子从天线复合物到二聚体的转移率和从二聚体到天线复合物的反向转移率之间的关系。