Abstract Present study strives to understand the role of Gaussian white noise and fluctuating magnetic field on time-average excitation rate (TAER) of impurity doped quantum dot (QD). The TAER profiles are exhaustively analyzed as a number of physical quantities are varied over a range with and without noise. Introduction of noise to the system has been performed in two different routes known as ’additive’ and ’multiplicative’. And the fluctuation of magnetic field has been considered to be cosinusoidal and random. These fluctuations drive the excitation of ground state electronic population to the higher states. The TAER profiles consist of features like steady increase/decrease, maximization, minimization and saturation. However, the specific features of a particular profile depend on presence/absence of noise, the noise mode, the nature of fluctuating magnetic field and the identity of the physical quantity undergoing change. Introduction of multiplicative noise around some typical strength and under the supervision of randomly varying magnetic field appears to be conducive for production of large TAER.

中文翻译：

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时变磁场下杂质掺杂量子点的跃迁动力学：噪声的作用

摘要 本研究旨在了解高斯白噪声和波动磁场对掺杂量子点（QD）时均激发率（TAER）的影响。由于许多物理量在有噪声和无噪声的范围内变化，因此对 TAER 曲线进行了详尽分析。向系统引入噪声是通过两种不同的途径进行的，即“加法”和“乘法”。并且磁场的波动被认为是余弦的和随机的。这些波动将基态电子布居激发到更高的状态。TAER 配置文件由稳定增加/减少、最大化、最小化和饱和等特征组成。但是，特定配置文件的特定特征取决于噪声的存在/不存在、噪声模式、波动磁场的性质和发生变化的物理量的特性。在一些典型强度周围并在随机变化磁场的监督下引入倍增噪声似乎有利于产生大 TAER。