Simplified Polarization-Encoding for BB84 QKD Sourced by Incoherent Light of a Silicon Emitter

2023/10/31 by Florian Honz, Nemanja Vokić, Honz, Florian +7
Computer Science · Engineering · Physics and Astronomy · #FOS: Physical sciences #Optical Network Technologies #Optics (physics.optics) #Quantum Physics (quant-ph) #Quantum-Dot Cellular Automata #Semiconductor Quantum Structures and Devices

paper · pdf · doi:10.48550/arxiv.2311.00017

openalex publication_date 2023/10/31 · openalex created_date 2023/11/03 · openalex updated_date 2026/07/28

Abstract

We investigate a polarization-encoded BB84-QKD transmitter that is simplified from an architectural and technological point-of-view, demonstrating a silicon emitter sourcing a low-complexity polarization modulator for secure-key generation at a raw-key rate of 2.8kb/s and QBER of 10.47%, underpinning the feasibility of an all-silicon QKD transmitter.

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