Co-propagation of Classical and Continuous-variable QKD Signals over a Turbulent Optical Channel with a Real-time QKD Receiver

2024/01/19 by João Frazão, Vincent van Vliet, Frazão, João dos Reis +13
Computer Science · Engineering · Physics and Astronomy · #FOS: Electrical engineering #FOS: Physical sciences #Optical Network Technologies #Orbital Angular Momentum in Optics #Quantum Information and Cryptography #Quantum Physics (quant-ph) #Signal Processing (eess.SP) #electronic engineering #information engineering

paper · pdf · doi:10.48550/arxiv.2401.10581

openalex publication_date 2024/01/19 · openalex created_date 2024/01/23 · openalex updated_date 2026/07/28

Abstract

We demonstrate classical and quantum signal co-propagation over a turbulent free-space channel with 3 Tbit/s throughput and record 2.7 Mbit/s secret-key rate. Our real-time GPU-based receiver assessed quantum signal integrity under different turbulence scenarios for the first time.

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