纳米腔-量子点系统中激子间的强耦合
Strong coupling of two interacting excitons confined in a nanocavity-quantum-dot system
摘要：
我们提出了辐射和物质之间的强耦合的研究，考虑两个量子点的系统，这是在相互作用和相互作用的单模光限制在半导体纳米腔。我们考虑耗散机制，如腔光子的逃逸，量子点激子的自发发射衰减，和独立激子泵浦。结果表明，点之间的相互作用可以测量非共振，只有当达到强耦合条件。利用量子回归定理，引入了一个合理的定义的动力学耦合制度的复拉比频率。最后给出了相应条件下的发射光谱，并与上述定义进行了比较，证明激子间的相互作用不影响强耦合。
英文摘要：
We present a study of the strong coupling between radiation and matter, considering a system of two quantum dots, which are in mutual interaction and interacting with a single mode of light confined in a semiconductor nanocavity. We take into account dissipative mechanisms such as the escape of the cavity photons, decay of the quantum dot excitons by spontaneous emission, and independent exciton pumping. It is shown that the mutual interaction between the dots can be measured off-resonance, only if the strong coupling condition is reached. Using the quantum regression theorem, a reasonable definition of the dynamical coupling regimes is introduced in terms of the complex Rabi frequency. Finally, the emission spectrum for relevant conditions is presented and compared with the above definition, demonstrating that the interaction between the excitons does not affect the Strong Coupling.
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