Quantum Key Distribution: Principles & Protocols
A comprehensive analysis of QKD mechanisms, including BB84 and E91 protocols, with practical implementation challenges in fiber-optic and free-space channels.
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Quantum Communications
Explore cutting-edge research, protocols, and applications in quantum key distribution, entanglement-based networking, and next-generation secure communications infrastructure. From theoretical foundations to satellite deployments, trace the evolution of unhackable data transmission.
142 Articles
8 Expert Contributors
Updated 2h ago
Entanglement-Based Quantum Networks
How quantum entanglement enables secure node-to-node communication, covering Bell state measurements, swapping techniques, and network topology design.
Satellite Quantum Communications: Deployment Status
Reviewing recent milestones in space-based quantum links, atmospheric attenuation mitigation, and global positioning-independent key exchange.
Post-Quantum Cryptography vs Quantum Communications
Comparing algorithmic defenses against quantum computers with physical-layer quantum communication security. Use cases, limitations, and hybrid approaches.
Quantum Repeaters: Extending the Range
Overcoming exponential photon loss in optical fibers. Memory architectures, purification protocols, and the path toward continental-scale quantum internet.
BB84 Protocol: A Mathematical Deep Dive
Step-by-step derivation of the original quantum key distribution protocol, error estimation bounds, and eavesdropping detection mechanisms.