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arXiv · 2504.20632

Tx-Rx Mode Mismatch Effects in Gaussian-Modulated CV QKD

Mateusz Kucharczyk·Michal Jachura·Marcin Jarzyna·Konrad Banaszek·Amirhossein Ghazisaeidi
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Abstract

The impact of technical limitations on pulse shaping used to generate a CV QKD signal is quantified in terms of the attainable secure key rate. Optimization of key spectral efficiency for Gaussian-modulated CV QKD with truncated and discretized root-raised cosine profiles is discussed.

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Mateusz Kucharczyk, Michal Jachura, Marcin Jarzyna, Konrad Banaszek, Amirhossein Ghazisaeidi. 2025-04-29. Tx-Rx Mode Mismatch Effects in Gaussian-Modulated CV QKD. https://arxiv.org/abs/2504.20632

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