Research Article

Demonstration of Blind Quantum Computing

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Science  20 Jan 2012:
Vol. 335, Issue 6066, pp. 303-308
DOI: 10.1126/science.1214707

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Quantum Blindness

While quantum computers offer speed advantages over their classical counterparts, the technological challenges facing their eventual realization suggest that they will need to be located in specialized facilities. Thus, interaction would then need to be on a quantum client:quantum server basis. Barz et al. (p. 303; see the Perspective by Vedral) implemented a proof-of-principle protocol that illustrates complete security in such a setup—for both the client and the server. In this blind quantum computing protocol, the client maintains the security of their data and the specifics of the calculation they want to perform, and the server cannot access the data or calculation of the client.

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