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Quadrature imbalance compensation in CV-QKD

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Abstract

We experimentally investigate quadrature imbalance compensation using Gram-Schmidt orthogonalization procedure (GSOP) for Gaussian-modulated CV-QKD. The results show that GSOP effectively corrects for quadrature imbalance allowing the same secret key fraction performance as a CV-QKD system with zero quadrature imbalance.

© 2022 The Author(s)

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