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6 March 2021 Quantum secret sharing with twisted light
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Quantum secret sharing is the procedure of securely distributing information between multiple parties by exploiting the features of quantum mechanics. Many variants exist, but in this work, we report a high-dimensional realization of a single-photon secret sharing scheme for distributing classical keys amongst many nodes. The implementation, which makes use of twisted light, is realized for as high as 11 dimensions and for as many as 10 participants: the highest reported to date and which is easily extendable to even higher dimensions and many participants. Such a result is an important first step towards a future quantum network.
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Jonathan Pinnell, Isaac M. Nape, Michael De Oliveira, Najmeh Tabebordbar, and Andrew Forbes "Quantum secret sharing with twisted light", Proc. SPIE 11701, Complex Light and Optical Forces XV, 117010K (6 March 2021); https://doi.org/10.1117/12.2578828
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