文章基本信息

标题：Experimental Demonstration of Four-Dimensional Photonic Spatial Entanglement between Multi-core Optical Fibres
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作者：Hee Jung Lee ; Sang-Kyung Choi ; Hee Su Park 等
期刊名称：Scientific Reports
电子版ISSN：2045-2322
出版年度：2017
卷号：7
期号：1
DOI：10.1038/s41598-017-04444-8
语种：English
出版社：Springer Nature
摘要：Fibre transport of multi-dimensional photonic quantum states promises high information capacity per photon without space restriction. This work experimentally demonstrates transmission of spatial ququarts through multi-core optical fibres and measurement of the entanglement between two fibres with quantum state analyzers, each composed of a spatial light modulator and a single-mode fibre. Quantum state tomography reconstructs the four-dimension entangled state that verifies the nonlocality through concurrences in two-dimensional subspaces, a lower bound of four-dimensional concurrence and a Bell-type CGLMP inequality.