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quant-ph2025
Digital Signal Processing from Classical Coherent Systems to Continuous-Variable QKD: A Review of Cross-Domain Techniques, Applications, and Challenges
Davi Juvêncio Gomes de Sousa, Caroline da Silva Morais Alves, Valéria Loureiro da Silva +1
This systematic review investigates the application of digital signal processing (DSP) techniques -- originally developed for coherent optical communication systems to continuous-v…
quant-ph2025
Neural network for excess noise estimation in continuous-variable quantum key distribution under composable finite-size security
Lucas Q. Galvão, Davi Juvêncio G. de Sousa, Micael Andrade Dias +1
Parameter estimation is a critical step in continuous-variable quantum key distribution (CV-QKD), especially in the finite-size regime where worst-case confidence intervals can sig…