Quantum simulators permit the study of quantum systems that are difficult to study in the laboratory and impossible to model with a supercomputer. In this instance, simulators are special purpose devices designed to provide insight about specific physics problems. Quantum simulators may be contrasted with generally programmable "digital" quantum computers, which would be capable of solving a wider class of quantum problems.
QKD simulator © is a web application aimed at simulating and analyzing Quantum Key Distribution protocols. The online simulator is powered by the QKD Simulation Toolkit, which is capable of customizing a wide range of parameters for individual components and sub-protocols in the system, e.g., Quantum channel, Sifting, Error estimation, Reconciliation, Privacy Amplification. Each simulation provides detailed information about the intermediate and final stages of the protocol.