Author

Marcel Mordarski

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#machine learning Preprint Oct 2026

Learnt Attacks on Quantum Key Distribution under Channel Noise and Device Drift

Quantum key distribution (QKD) links are provisioned from security analyses of stationary channels, whereas the devices that determine the channel drift between recalibrations. Whether an eavesdropper who cannot alter the channel's own noise gains by following that drift has not been quantified. Adaptive eavesdropping...

Marcel Mordarski, Benjamin I. Gräs, A. Shehata et al. · 0 citations

#machine learning Preprint Sep 2026

Encryptability As a Coordinate Choice: Depth-One Homomorphic Federated Learning of Quantum Neural Networks

Encrypted training relies on keeping server-side updates low-degree. This constraint traditionally excludes models whose weights inhabit a compact Lie group (notably variational quantum circuits, where every trainable weight is an $\mathrm{SU(2)}$ rotation). Expressed in Euler angles or discrete alphabets, these update...

Marcel Mordarski, N. Mani, Arshad Patel et al. · 0 citations