Flow ambiguity: A path towards classically driven blind quantum computation

Mantri, A, Demarie, T, Menicucci, N and Fitzsimmons, J 2017, 'Flow ambiguity: A path towards classically driven blind quantum computation', Physical Review X, vol. 7, no. 3, 031004, pp. 1-15.


Document type: Journal Article
Collection: Journal Articles

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Title Flow ambiguity: A path towards classically driven blind quantum computation
Author(s) Mantri, A
Demarie, T
Menicucci, N
Fitzsimmons, J
Year 2017
Journal name Physical Review X
Volume number 7
Issue number 3
Article Number 031004
Start page 1
End page 15
Total pages 15
Publisher American Physical Society
Abstract Blind quantumcomputation protocols allowa user to delegate a computation to a remote quantum computer in such a way that the privacy of their computation is preserved, even from the device implementing the computation. To date, such protocols are only known for settings involving at least two quantumdevices: either a user with some quantum capabilities and a remote quantum server or two or more entangled but noncommunicating servers. In this work, we take the first step towards the construction of a blind quantum computing protocol with a completely classical client and single quantum server. Specifically, we show how a classical client can exploit the ambiguity in the flowof information inmeasurement-based quantumcomputing to construct a protocol for hiding critical aspects of a computation delegated to a remote quantum computer. This ambiguity arises due to the fact that, for a fixed graph, there existmultiple choices of the input and output vertex sets that result in deterministic measurement patterns consistent with the same fixed total ordering of vertices. This allows a classical user, computing only measurement angles, to drive a measurement-based computation performed on a remote device while hiding critical aspects of the computation.
Subject Quantum Information, Computation and Communication
Keyword(s) Quantum Information
DOI - identifier 10.1103/PhysRevX.7.031004
Copyright notice Published by the American Physical Society under the terms of the Creative Commons Attribution 3.0 License. Further distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation, and DOI
ISSN 2160-3308
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