A satellite twin-field QKD simulation with a topological data-analysis gate shows no rate advantage over the same gate without TDA, and the authors state the full composable-security proof remains incomplete.
Simple security proof of twin-field quantum key distribution protocols,
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Topological State-Aware Simulation Framework for Inter-Satellite Twin-Field QKD Networks
A satellite twin-field QKD simulation with a topological data-analysis gate shows no rate advantage over the same gate without TDA, and the authors state the full composable-security proof remains incomplete.