- 作者: Ivan Barvik and Jan Macek
- 中文摘要: We have contrasted several methods which can be obtained from the Tokuyama-Mori approach only by serious approximations treating exciton transfer as well as relaxation in the simplest model, namely symmetric molecular dimer. We have solved dynamical equations of motion for the density matrix r of the exciton interacting with a bath. The bath has been simulated by phonons in an infinite linear chain. An exciton-phonon interaction has been taken as the local, linear and weak one. The exciton transfer runs in microscopic “SLE like” models without (mSLE) and with (mSLEr) relaxation slower and, on the other hand, in the Redfield (RE) model with the secular approximation quicker than in the Tokuyama-Mori (TM) model. Relaxation between extended states + and – is for models mSLEr and RE quicker than in the TM model.
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