论文标题
通过过滤操作控制Unital图的量子速度限制时间
Controlling the quantum speed limit time for unital maps via filtering operations
论文作者
论文摘要
系统需要从初始状态变为最终正交状态的最小时间称为量子速度限制时间。量子速度限制时间可用于量化量子演化的速度。如果量子速度限制时间降低，量子演化的速度将会增加。在这项工作中，我们将使用基于相对纯度的限制限制时间限制时间。它适用于任何任意初始状态。在这里，我们研究了过滤操作对量子速度限制时间的影响。可以观察到，对于过滤操作参数的某些间隔，量子速度限制时间通过增加过滤操作参数而减小，并且在某些其他间隔中，通过减少过滤操作参数来减少。
The minimum time a system needs to change from an initial state to a final orthogonal state is called quantum speed limit time. Quantum speed limit time can be used to quantify the speed of the quantum evolution. The speed of the quantum evolution will increase, if the quantum speed limit time decreases. In this work we will use relative purity based bound for quantum speed limit time. It is applicable for any arbitrary initial state. Here, we investigate the effects of filtering operation on quantum speed limit time. It will be observed that for some intervals of filtering operation parameter the quantum speed limit time is decreased by increasing filtering operation parameter and for some other intervals it is decreased by decreasing filtering operation parameter.
