Authors provide analytical bound and gradient for Rényi quantities to extend numerical QKD finite-key optimization, reporting gains in high-loss low-block regimes.
To verify the correctness of this step, Alice sends a 2-universal hash of her key string of length log2(1/ϵEV) to Bob for error verification
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Generalized Numerical Framework for Improved Finite-Sized Key Rates with R\'enyi Entropy
Authors provide analytical bound and gradient for Rényi quantities to extend numerical QKD finite-key optimization, reporting gains in high-loss low-block regimes.