We study memory effects (non-Markovian evolution) in the spontaneous emission dynamics of a quantum emitter near a molybdenum disulfide nanodisk by going beyond the analysis of the reversible population dynamics of the excited state and considering the dynamics of the non-Markovian open system. Specifically, we quantify the non-Markovian spontaneous emission dynamics using different non-Markovianity measures and also investigate the potential quantum speed up of the dynamics in relation to its non-Markovian features. We find that the values of the non-Markovianity measures and of the potential quantum speed up are large under strong coupling conditions, while in both cases the non-Markovianity measures and the quantum speed up decreases as the coupling between the emitter and the nanodisk becomes weaker. A comparison of the different non-Markovianity measures is also presented for the system under study.

我们通过分析激发态可逆的种群动力学，并考虑非马尔可夫开放系统的动力学，研究了二硫化钼纳米盘附近量子发射器自发发射动力学中的记忆效应（非马尔可夫演化）。具体来说，我们使用不同的非马尔可夫度量来量化非马尔可夫自发发射动力学，并研究与非马尔可夫特征有关的动力学的潜在量子加速。我们发现，在强耦合条件下，非马尔可夫性测度和潜在的量子加速的值都很大，而在两种情况下，随着发射体与纳米盘之间的耦合变大，非马尔可夫性测度和量子加速的作用减小。较弱。