论文标题
直接反事实量子通信协议超出了单光子源
Direct counterfactual quantum communication protocol beyond single photon source
论文作者
论文摘要
涉及双链式Mach-Zhhnder干涉仪的直接反事实量子通信协议需要单个光子输入。在这里，我们表明，即使使用多光子光源，包括强烈的连贯的光源作为输入，也可以通过在理想的渐近限制中取得成功的概率来实现反事实通信。多个光子的路径演化是非局部控制的。因此，信息是在公共传输渠道中出现的，没有任何光子或任何其他辅助信息载体的传输。效果是量子，因为量子测量是该协议的必要要求。此外，提出了一种修改方案，其中减少了干涉仪数量。
The direct counterfactual quantum communication protocol involving double chained Mach-Zehnder interferometers requires a single photon input. Here, we show that even with multiphoton light sources, including a strong coherent light source as inputs, the counterfactual communication can be achieved with success probability approaching unity in the ideal asymptotic limit. The path evolution of multiple photons is non-locally controlled. Thus, information is transmitted without any photons, or any other auxiliary information carriers, appearing in the public transmission channel. The effect is quantum since quantum measurements are essential requirement for this protocol. Furthermore, a modified scheme is proposed in which number of interferometers is reduced.
