We theoretically demonstrate the Fano resonance and the conversion from fast to slow light in a hybrid semiconductor quantum dot (SQDs)-metal nanoparticle (MNPs) with cavity quantum electrodynamics treatment. The absorption spectra of the weak probe field exhibit a series of asymmetric Fano line shapes and their related optical propagation properties, such as fast and slow light effects, are investigated based on the hybrid system for suitable parametric regimes. Further, the transparency windows (i.e. the absorption dip approaches zero) in the probe absorption spectra are accompanied by the rapid steep dispersion of the Fano resonance profile, which promises the slow or fast light effect, and even tunable fast-to-slow light propagation (or vice versa) can be achieved by controlling different parameter regimes. Therefore the investigation may indicate promising applications in quantum information processing based on the hybrid SQD-MNP system.

中文翻译：

---

费诺共振在杂化半导体量子点和金属纳米粒子系统中诱导快慢光

我们从理论上证明了通过腔量子电动力学处理的杂化半导体量子点（SQDs）-金属纳米颗粒（MNP）中的Fano共振和从快光到慢光的转换。弱探针场的吸收光谱表现出一系列不对称的Fano线形，并基于混合系统研究了其相关的光学传播特性，例如快光和慢光效应，以寻找合适的参数范围。此外，探针吸收光谱中的透明窗口（即吸收倾角接近零）伴随着Fano共振曲线的快速陡峭色散，从而保证了缓慢或快速的光效应，甚至可调节的快慢传播。 （反之亦然）可以通过控制不同的参数范围来实现。