Color-Encoded Quantum Cryptography: Advances in Frequency-Bin Entanglement-Based Quantum Key Distribution

This work explores quantum cryptography through frequency-bin encoding, leveraging photon frequencies for tap-proof entanglement distribution in reconfigurable networks. We integrate recent breakthroughs in Photonic Quantum Convolutional Neural Networks (PQCNNs) and transformer-based error decoding to enhance resilience in quantum processors. The paper demonstrates the first implementation of the BBM92 protocol using frequency bins, achieving adaptive multiplexing and multi-user scalability. Extending to cislunar resilience, Delay/Disruption Tolerant Networking (DTN) supports space-terrestrial V2X. These elements support resilient quantum networks aligned with the Genesis Mission’s emphasis on AI-accelerated quantum technologies and national laboratory infrastructure.