作者
Bereneice Sephton, Adam Vallés, Isaac Nape, Mitchell A Cox, Fabian Steinlechner, Thomas Konrad, Juan P Torres, Filippus S Roux, Andrew Forbes
发表日期
2023/12/13
期刊
Nature communications
卷号
14
期号
1
页码范围
8243
出版商
Nature Publishing Group UK
简介
Information exchange between two distant parties, where information is shared without physically transporting it, is a crucial resource in future quantum networks. Doing so with high-dimensional states offers the promise of higher information capacity and improved resilience to noise, but progress to date has been limited. Here we demonstrate how a nonlinear parametric process allows for arbitrary high-dimensional state projections in the spatial degree of freedom, where a strong coherent field enhances the probability of the process. This allows us to experimentally realise quantum transport of high-dimensional spatial information facilitated by a quantum channel with a single entangled pair and a nonlinear spatial mode detector. Using sum frequency generation we upconvert one of the photons from an entangled pair resulting in high-dimensional spatial information transported to the other. We realise a d = 15 …
引用总数
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B Sephton, A Vallés, I Nape, MA Cox, F Steinlechner… - arXiv preprint arXiv:2111.13624, 2021
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