基于量子态融合和Fission的无阻塞光量子榕树网络
Block Free Optical Quantum Banyan Network based on Quantum State Fusion and Fission
摘要：
光交换结构在构建多用户光量子通信网络中起着重要的作用。Banyan网络由于其自路由特性和低复杂度而被广泛用于构建交换结构。然而，经典的Banyan网络内部阻塞消除方法并不有效。量子态融合技术可以将两个光子的二维内部量子态融合成一个光子的四维内部量子态，从而使这一问题的解决成为可能。本文将量子态融合的输出模式从空间偏振模式转换为时间偏振模式。将改进的量子态融合、量子态裂变和量子Fredkin门相结合，提出了一种实用的无阻塞光量子开关单元方案。该方案可以扩展到建立更复杂的单位，其中四个在本文中显示。
英文摘要：
Optical switch fabric plays an important role in building multiple-user optical quantum communication networks. Owing to its self-routing property and low complexity, Banyan network is widely used for building switch fabric. While, there is no efficient way to remove internal blocking in Banyan network by classical way. Quantum state fusion, by which the two-dimensional internal quantum state of two photons could be combined into four-dimensional internal state of a single photon, makes it possible to solve this problem. In this paper, we convert the output mode of quantum state fusion from spatial-polarization mode to time-polarization mode. By combining modified quantum state fusion, quantum state fission with quantum Fredkin gate, we propose a practical scheme to build an optical quantum switch unit which is block free. The scheme can be extended to build more complex units, four of which are shown in this paper.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
