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Quantum Information Processing

Erschienen in:

01.04.2024

Security analysis of linear optics cloning machine-enhanced passive state preparation continuous-variable quantum key distribution

verfasst von: Ying He, Tianyi Wang

Erschienen in: Quantum Information Processing | Ausgabe 4/2024

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Abstract

In this paper, the security of linear optics cloning machine-enhanced passive state preparation continuous-variable quantum key distribution is investigated. The employment of passive state preparation eliminates the strict requirements on electro-optical modulators, while an appropriately tuned linear optics cloning machine can compensate the preparation noise introduced in passive state preparation and improve the system performance. The expression of the composable secret key rate in the finite-size regime of the proposed scheme is obtained. Simulation results demonstrate that the proposed scheme can effectively enhance the secret key rate and increase the maximum secure transmission distance.

Vorheriger Artikel Entanglement concentration of W state using linear optics with a higher success probability

Nächster Artikel New Demiric–Selçuk meet-in-the-middle attacks on Misty and Feistel schemes

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Titel: Security analysis of linear optics cloning machine-enhanced passive state preparation continuous-variable quantum key distribution
verfasst von: Ying He
Tianyi Wang
Publikationsdatum: 01.04.2024
Verlag: Springer US
Erschienen in: Quantum Information Processing / Ausgabe 4/2024
Print ISSN: 1570-0755
Elektronische ISSN: 1573-1332
DOI: https://doi.org/10.1007/s11128-024-04344-7

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