Driven mesoscopic system is a topic of great recent interest. The temporal evolution of the fluxes (particle and energy) are studied in a system of a driven single level quantum dot. At a very low reservoir temperature $T\to 0$ and for common chemical potentials of the two reservoirs, we have presented analytical expressions for time dependent particle and energy fluxes in a very simple form. Apart from these fluxes, the behavior of the dot occupation and the power developed in the system due to the presence of the time dependent drive are also being studied. Importantly, for a very low frequency of the drive, one finds a directed energy flow towards the leads. Increasing the frequency from low to medium, one finds change in the direction of the energy flow, which depends on time. These results can also be verified experimentally.

驱动介观系统是最近引起人们极大兴趣的话题。在驱动单级量子点的系统中研究了通量（粒子和能量）的时间演化。在非常低的储层温度下$Ť\to 0$对于这两个储层的共同化学势，我们以非常简单的形式给出了随时间变化的颗粒和能量通量的解析表达式。除这些通量外，还研究了点占用的行为以及由于存在与时间有关的驱动而在系统中产生的功率。重要的是，对于非常低的驱动频率，人们会发现有直接的能量流向导线。从低到中增加频率，人们会发现能量流的方向发生变化，这取决于时间。这些结果也可以通过实验验证。