Designable single-photon quantum routings with atomic mirrors
Designable single-photon quantum routings with atomic mirrors
复制标题
具有原子镜的可设计单光子量子路由
DOI：
10.1103/physreva.92.063836
复制
发表时间：
2015-12
影响因子：
2.9
通讯作者：
L. F. Wei
中科院分区：
文献类型：
--
作者：
Xingmin Li;Xingmin Li;L. F. Wei;L. F. Wei
量子路由器是量子信息网络的必要组成部分，因此其路由能力尤为重要。通过原子镜鲁棒地控制波导光子的反射或透射系数，我们证明了二能级原子可以作为理想的量子路由器，以可设计的概率将单个光子从输入波导重定向到输出波导（OWG），例如，对于一个OWG，到两个OWG之一，和到三个OWG之一，等等。讨论了原子耗散对路由性能的影响。
Quantum routers are the necessary elements of the quantum information network, and thus their routing capabilities are particularly important. With the atomic mirrors robustly controlling the reflected or transmitted coefficient of the waveguide photon, we show that a two-level atom can be served as an ideal quantum router to redirect a single photon from the input waveguide into the output waveguides (OWGs) with designable probabilities, e.g.,for one OWG,to one of the two OWGs, andto one of the three OWGs, etc.. The influence of the atomic dissipations on the routing capability is also discussed.