Continuous-variable quantum key distribution in a multi-way setting

Panagiotis Papanastasiou; Stefano Pirandola

doi:10.1117/12.2641717

19 July 2022 Continuous-variable quantum key distribution in a multi-way setting

Panagiotis Papanastasiou, Stefano Pirandola

Proceedings Volume 12243, Photonics for Quantum 2022; 122430A (2022) https://doi.org/10.1117/12.2641717
Event: Photonics for Quantum, 2022, Rochester, NY, United States

Abstract

We extend the asymptotic security of continuous variable quantum key distribution using one-way and two-way quantum communication to a multi-way setting: Quantum signals travel many times between the parties before the final detection. We assume that the encoded signals are Gaussian-modulated coherent states that travel each time through the same Gaussian channel characterized by loss and thermal noise. We then quantify the reverse-reconciliation performance of the protocol presenting results for even or odd numbers of signal exchange.

Conference Presentation

Citation Download Citation

Panagiotis Papanastasiou and Stefano Pirandola "Continuous-variable quantum key distribution in a multi-way setting", Proc. SPIE 12243, Photonics for Quantum 2022, 122430A (19 July 2022); https://doi.org/10.1117/12.2641717

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