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Tr. Mat. Inst. Steklova, Forthcoming paper (Mi tm3975)  

Model of vibrones in quantum photosynthesis as an analog of model of laser

S. V. Kozyrev

Steklov Mathematical Institute of Russian Academy of Sciences, Moscow

Abstract: Mechanism of vibronic amplification of transport of excitons was discussed in relation to quantum photosynthesis. Vibrones (some modes of vibrations of molecules) are observed experimentally in photosynthetic systems. In the present paper we discuss a model of vibronic amplification of quantum transfer where generation of vibrones as a coherent vibrational mode is described by an analog of semiclassical theory of laser. We consider two models — a model of nonequilibrium three level system with vibronic mode, and some variant of a model of laser without inversion. We conjecture that dark states discussed in relation to quantum photosynthesis might be related to mechanism of vibronic "laser" without inversion which amplifies the transfer of excitons. We prove that in presence of vibronic mode transfer rate of excitons increases and compute dependence of the transfer rate on parameters of the model.

Funding Agency Grant Number
Russian Science Foundation 17-71-20154
This work is supported by the Russian Science Foundation under grant 17--71--20154.



Document Type: Article
Received: August 27, 2018
Revised: November 7, 2018
Accepted: March 28, 2019

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