Composable privacy of networked quantum sensing

• URL: http://arxiv.org/abs/2510.06326v1
• Date: Tue, 07 Oct 2025 18:00:04 GMT
• Title: Composable privacy of networked quantum sensing
• Authors: Naomi R. Solomons, Damian Markham,
• Abstract summary: Networks of sensors are a promising scheme to deliver the benefits of quantum technologies in coming years.<n>Recent work has explored the privacy of these schemes, meaning that local parameters can be kept secret while a joint function of these is estimated by the network.
• Score: 1.0312968200748116
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: Networks of sensors are a promising scheme to deliver the benefits of quantum technologies in coming years, offering enhanced precision and accuracy for distributed metrology through the use of large entangled states. Recent work has additionally explored the privacy of these schemes, meaning that local parameters can be kept secret while a joint function of these is estimated by the network. In this work, we use the abstract cryptography framework to relate the two proposed definitions of quasi-privacy, showing that both are composable, which enables the protocol to be securely included as a sub-routine to other schemes. We give an explicit example that estimating the mean of a set of parameters using GHZ states is composably fully secure.

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