论文标题
通过非经典光增强光电电流
Enhancing photoelectric current by nonclassical light
论文作者
论文摘要
我们研究具有非经典光子统计的驱动光产生的光电电流。由于非经典的输入光子统计数据，它不再足以将驱动光作为平面波像经典物理学一样。我们采取了一种量子方法来研究此类问题，并发现：当驾驶灯从连贯的状态开始为初始状态时，我们的量子处理很好地返回了准经典驾驶描述；当驾驶灯是具有一定P函数的通用状态时，可以将完整的系统动力学降低，因为在每个动力学分支中，P函数的平均值P函数平均值，驱动光从连贯的状态开始，因此可以在上述准经典方式中获得系统动力学。基于这种量子方法，事实证明，不同的光子统计数据确实与光电电流有所不同。在所有具有相同光强度的经典光状态中，我们证明具有泊松统计的输入光会产生最大的光电电流，而非经典的亚葡萄酒光线可能会超过该经典上限。
We study the photoelectric current generated by a driving light with nonclassical photon statistics. Due to the nonclassical input photon statistics, it is no longer enough to treat the driving light as a planar wave as in classical physics. We make a quantum approach to study such problems, and find that: when the driving light starts from a coherent state as the initial state, our quantum treatment well returns the quasi-classical driving description; when the the driving light is a generic state with a certain P function, the full system dynamics can be reduced as the P function average of many "branches" -- in each dynamics branch, the driving light starts from a coherent state, thus again the system dynamics can be obtained in the above quasi-classical way. Based on this quantum approach, it turns out the different photon statistics does make differences to the photoelectric current. Among all the classical light states with the same light intensity, we prove that the input light with Poisson statistics generates the largest photoelectric current, while a nonclassical sub-Poisson light could exceed this classical upper bound.
