Mode Mismatch Mitigation in Gaussian-Modulated CV-QKD

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Svitlana Matsenko, Amirhossein Ghazisaeidi, Marcin Jarzyna, Mikkel N. Schmidt, Søren F. Nielsen, Konrad Banaszek, Darko Zibar

Published: 01 Jan 2025, Last Modified: 26 Sept 2025CoRR 2025EveryoneRevisionsBibTeXCC BY-SA 4.0
Abstract: Technical limitations in pulse shaping lead to mode mismatch, which significantly reduces the secure key rate in CV-QKD systems. To address this, a machine learning approach is employed to optimize the transmitter pulse-shape, effectively minimizing mode mismatch and yielding substantial performance improvements.