论文标题
基于同伴的反馈控制对量子速度限制时间的影响
The effect of Homodyne-based feedback control on quantum speed limit time
论文作者
论文摘要
系统需要将最小的时间从初始状态转换为目标状态，定义为量子速度限制时间。可以应用量子速度限制时间来量化量子系统演变的最大速度。量子速度限制时间与量子系统的演变速度成反比。也就是说，较短的量子速度限制时间意味着更高的量子演化速度。在这项工作中，我们研究了基于同性恋的反馈控制下的两级原子的量子速度限制时间。结果表明，通过增加反馈系数来减少量子速度限制时间。因此，基于同性恋的反馈控制可以诱导量子系统的演变加速。
The minimal time a system requires to transform from an initial state to target state is defined as the quantum speed limit time. quantum speed limit time can be applied to quantify the maximum speed of the evolution of a quantum system. Quantum speed limit time is inversely related to the speed of evolution of a quantum system. That is, shorter quantum speed limit time means higher speed of quantum evolution. In this work, we study the quantum speed limit time of a two-level atom under Homodyne-based feedback control. The results show that the quantum speed limit time is decreased by increasing feedback coefficient. So, Homodyne-based feedback control can induce speedup the evolution of quantum system.
