A coherence-witnessing game and applications to semi-device-independent quantum key distribution

• URL: http://arxiv.org/abs/2103.06829v4
• Date: Thu, 17 Aug 2023 18:27:46 GMT
• Title: A coherence-witnessing game and applications to semi-device-independent quantum key distribution
• Authors: M\'ario Silva, Ricardo Faleiro, Paulo Mateus and Emmanuel Zambrini Cruzeiro
• Abstract summary: We introduce a coherence-based, semi-device-independent, semi-quantum key distribution protocol built upon a noise-robust version of a coherence equality game. Security is proven in the bounded quantum storage model, requiring users to implement only classical operations.
• Score: 1.024113475677323
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: Semi-device-independent quantum key distribution aims to achieve a balance between the highest level of security, device independence, and experimental feasibility. Semi-quantum key distribution presents an intriguing approach that seeks to minimize users' reliance on quantum operations while maintaining security, thus enabling the development of simplified and hardware fault-tolerant quantum protocols. In this work, we introduce a coherence-based, semi-device-independent, semi-quantum key distribution protocol built upon a noise-robust version of a coherence equality game that witnesses various types of coherence. Security is proven in the bounded quantum storage model, requiring users to implement only classical operations, specifically fixed-basis detections.

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