论文标题
量子光学方法用于腔中光诱导的电子传输
A quantum optics approach to photoinduced electron transfer in cavities
论文作者
论文摘要
我们研究了许多供体 - 受体对的光诱导电子传递反应的简单模型，这些模型集体均匀地耦合到空腔的光子模式。我们描述了由于量子光学元件Lindblad Master方程的框架内这种耦合而产生的相干和耗散集体效应。我们引入了一种通过绝热消除捐赠者和受体状态以及空腔模式来得出电子传输有效速率方程的方法。所得速率方程对于弱和强耦合到腔模式都是有效的，并描述了通过空腔耦合的明亮状态和未耦合的暗状态的电子传输。我们得出了瞬时电子传递速率的分析表达，该表达非依赖于基态下的时间变化数。我们发现，在适当的共振条件下，在存在不一致的驱动器下，腔体可以提高反应速率。在弱光耦合方案中，这种增强持续，甚至可能是最大的。我们讨论了腔效应与现实实验如何相关的。
We study a simple model for photoinduced electron transfer reactions for the case of many donor-acceptor pairs that are collectively and homogeneously coupled to a photon mode of a cavity. We describe both coherent and dissipative collective effects resulting from this coupling within the framework of a quantum optics Lindblad master equation. We introduce a method to derive an effective rate equation for electron transfer, by adiabatically eliminating donor and acceptor states and the cavity mode. The resulting rate equation is valid both for weak and strong coupling to the cavity mode, and describes electronic transfer through both the cavity coupled bright states and the uncoupled dark states. We derive an analytic expression for the instantaneous electron transfer rate that depends non-trivially on the time-varying number of pairs in the ground state. We find that under proper resonance conditions, and in the presence of an incoherent drive, reaction rates can be enhanced by the cavity. This enhancement persists, and can even be largest, in the weak light-matter coupling regime. We discuss how the cavity effect is relevant for realistic experiments.
