Noise Analysis for two Quantum Cryptography Protocols
This work addresses noise robustness in quantum cryptography for secure communication, but it appears incremental as it focuses on analysis of existing protocols.
The paper analyzes noise in two-stage and three-stage quantum cryptography protocols using random polarization rotations, modeling errors as uniformly distributed and independent across links, and highlights their advantages for low-intensity laser systems.
This paper presents noise analysis for the two-stage and the three-stage quantum cryptographic protocols based on random polarization rotations. The noise model used is that of uniform distribution of error over a certain small range that is associated with each link without regard for the source of the error. The noise in different links is taken to be independent. Advantages of the use of these protocols in low intensity laser systems are given.