Manipulation of eight-dimensional Bell-like states

Ling Jun Kong, Rui Liu, Wen Rong Qi, Zhou Xiang Wang, Shuang Yin Huang, Qiang Wang, Chenghou Tu, Yongnan Li*, Hui Tian Wang

*此作品的通讯作者

科研成果: 期刊稿件文章同行评审

25 引用 (Scopus)

摘要

High-dimensional Bell-like states are necessary for increasing the channel capacity of the quantum protocol. However, their preparation and measurement are still huge challenges, especially for the latter. Here, we prepare an initial eight-dimensional Bell-like state based on hyperentanglement of spin and orbital angular momentum (OAM) of the first and the third orders. We design simple unitary operations to produce eight Bell-like states, which can be distinguished completely in theory among each other. We propose and illustrate a multiple projective measurement scheme composed of only linear optical elements and experimentally demonstrate that all the eight hyperentangled Bell-like states can be completely distinguished by our scheme. Our idea of manipulating the eight Bell-like states is beneficial to achieve the 3-bit channel capacity of quantum protocol, opening the door for extending applications of OAM states in future quantum information technology.

源语言英语
文章编号eaat9206
期刊Science advances
5
6
DOI
出版状态已出版 - 14 6月 2019
已对外发布

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