Intensity and State Estimation in Quantum Cryptography
arXiv:1302.1823v12 citations
Originality Synthesis-oriented
AI Analysis
This addresses security vulnerabilities in quantum cryptography systems, particularly for secure communication protocols, but appears incremental as it builds on existing methods.
The paper tackles the problem of detecting eavesdropping in quantum cryptography by using intensity and state estimation to identify if photons have been siphoned off and injected, with results indicating improved detection capabilities.
This paper describes how the communicating parties can employ intensity and state estimation to detect if the eavesdropper has siphoned off and injected photons in the received communication. This is of relevance in quantum cryptography based on random rotations of photon polarizations.