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Microscopic foundation of the Forster excitonic energy transfer process

机译:Forster激子能量转移过程的微观基础

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We present a derivation of Forster coupling between two quantum dots by solving the equation of motion for the material excitation simultaneously with Maxwells equations. This allows us to identify the Forster process with the short-range contribution of the coupling that is mediated by the total electric field. The dependence of the coupling on the distance R of the dots is proportional to R-3, i.e. the rates follow the well-known R-6 behaviour. For distances between the sites longer than a quarter of the wavelength of light there is a cross-over to coupling due to the retarded light field, which is, proportional to R-1 i.e. the rates are proportional to R-2. [References: 4]
机译:通过同时求解材料激发的运动方程和麦克斯韦方程,我们提出了两个量子点之间的福斯特耦合的推导。这使我们能够通过总电场介导的耦合的短程贡献来识别Forster过程。耦合对点距离R的依赖性与R-3成比例,即速率遵循众所周知的R-6行为。对于位点之间的距离长于光波长四分之一的距离,由于延迟的光场而与耦合产生交叉,这与R-1成正比,即速率与R-2成正比。 [参考:4]

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