Quantum-private distributed sensing Article Swipe

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Joseph Ho , Jonathan K. Webb , Russell Brooks , Federico Grasselli , Erik M. Gauger , Alessandro Fedrizzi ·

YOU? · · 2024 · Open Access ·

Quantum networks can enhance both security and privacy conditions for multi-user communication, delegated computation, and distributed sensing tasks. An example quantum protocol is private parameter estimation (PPE) where only the aggregate information is accessible while individual sensor data remain confidential. Specifically, the protocol enables the estimation of a global function of remote sensor parameters without revealing local parameters to any entity. We implement the PPE protocol by distributing a three-photon Greenberger-Horne-Zeilinger (GHZ) state, among three sensors, which is verified using stabilizer measurements to establish privacy and precision bounds for the sensing task. We demonstrate Heisenberg-limited precision scaling of the global parameter while suppressing the metrological information of the local parameters by up to three orders of magnitude. This work, which integrates privacy in distributed quantum sensing, marks a crucial step towards developing advanced quantum-secure-and-private protocols in complex quantum networks.

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Quantum Computer science Business Physics Quantum mechanics

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Type: preprint
Language: en
Landing Page: http://arxiv.org/abs/2410.00970
PDF: https://arxiv.org/pdf/2410.00970
OA Status: green
Related Works: 10
OpenAlex ID: https://openalex.org/W4403406979

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OpenAlex ID: https://openalex.org/W4403406979

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Title: Quantum-private distributed sensing

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Type: preprint

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Language: en

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Publication year: 2024

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Publication date: 2024-10-01

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Authors: Joseph Ho, Jonathan K. Webb, Russell Brooks, Federico Grasselli, Erik M. Gauger, Alessandro Fedrizzi

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Landing page: https://arxiv.org/abs/2410.00970

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PDF URL: https://arxiv.org/pdf/2410.00970

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Open access: Yes

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OA status: green

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OA URL: https://arxiv.org/pdf/2410.00970

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Concepts: Quantum, Computer science, Business, Physics, Quantum mechanics

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Cited by: 0

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Related works (count): 10

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