Performance Evaluation of Secure Key Distribution Based on Quantum Mechanics Principles Over Free Space.

摘要: Quantum key distribution (QKD) provides a perfectly secure coding method which solves the problem of distribution, it is currently most mature application in field quantum computing. Performance analysis very important determining effectiveness various QKD protocols. However, Lack effective simulation tools for evaluating protocols over free space results to use Analytical (theoretical) and experimental (real equipments) evaluation, later inaccurate while former expensive. Optisystem 7.0, commercial photonic simulator widely used telecommunication was modeling simulating BB84,B92 Six State The model emphasizes on components distribution. Results obtained based sifted rate failure shows that state protocol has low high are identical from experiments. detector implementation assumption single photon reduces accuracy results. can help researchers test their models before performing