论文标题
三个或更多光子的非局部分散取消
Nonlocal Dispersion Cancellation for Three or More Photons
论文作者
论文摘要
量子系统的纠缠可以产生各种在量子信息科学中具有实际应用的非经典效应。一个例子是非局部分散取消，其中分散体对一个光子的影响可以通过在遥远位置的第二个光子所经历的分散剂来取消。在本文中，我们将非局部分散取消的分析扩展到三个或更多光子。我们发现，三个或更多光子的能量时间纠缠可以根据实验条件导致分散剂的完整或部分取消。这些结果可能在三个或更多节点的网络中实现量子密钥分布可能很有用。
The entanglement of quantum systems can produce a variety of nonclassical effects that have practical applications in quantum information science. One example of this is nonlocal dispersion cancellation, in which the effects of dispersion on one photon can be canceled out by the dispersion experienced by a second photon at a distant location. In this paper, we extend the analysis of nonlocal dispersion cancellation to three or more photons. We find that energy-time entanglement of three or more photons can lead to a complete or partial cancellation of dispersion depending on the experimental conditions. These results may be useful in implementing quantum key distribution in networks with three or more nodes.
