Hu Xiao-Min, Zhang Chao, Liu Bi-Heng, Cai Yu, Ye Xiang-Jun, Guo Yu, Xing Wen-Bo, Huang Cen-Xiao, Huang Yun-Feng, Li Chuan-Feng, Guo Guang-Can
CAS Key Laboratory of Quantum Information, University of Science and Technology of China, Hefei 230026, People's Republic of China.
CAS Center For Excellence in Quantum Information and Quantum Physics, University of Science and Technology of China, Hefei 230026, People's Republic of China.
Phys Rev Lett. 2020 Dec 4;125(23):230501. doi: 10.1103/PhysRevLett.125.230501.
Quantum teleportation provides a way to transmit unknown quantum states from one location to another. In the quantum world, multilevel systems which enable high-dimensional systems are more prevalent. Therefore, to completely rebuild the quantum states of a single particle remotely, one needs to teleport multilevel (high-dimensional) states. Here, we demonstrate the teleportation of high-dimensional states in a three-dimensional six-photon system. We exploit the spatial mode of a single photon as the high-dimensional system, use two auxiliary entangled photons to realize a deterministic three-dimensional Bell state measurement. The fidelity of teleportation process matrix is F=0.596±0.037. Through this process matrix, we can prove that our teleportation is both nonclassical and genuine three dimensional. Our work paves the way to rebuild complex quantum systems remotely and to construct complex quantum networks.
量子隐形传态提供了一种将未知量子态从一个位置传输到另一个位置的方法。在量子世界中，能够实现高维系统的多能级系统更为普遍。因此，要远程完全重建单个粒子的量子态，就需要隐形传态多能级（高维）态。在此，我们展示了在三维六光子系统中高维态的隐形传态。我们利用单个光子的空间模式作为高维系统，使用两个辅助纠缠光子来实现确定性的三维贝尔态测量。隐形传态过程矩阵的保真度为F = 0.596±0.037。通过这个过程矩阵，我们可以证明我们的隐形传态既是非经典的，也是真正三维的。我们的工作为远程重建复杂量子系统以及构建复杂量子网络铺平了道路。
