ShaNQar: Simulator of Network Quantique

TL;DR

ShaNQar is a modular, customizable quantum network simulator that accurately models complex photonic components, enabling testing and optimization of quantum communication protocols before real-world deployment.

Contribution

It introduces a versatile, high-performance simulation framework for quantum networks with detailed component models and adaptive control, facilitating experimental planning and protocol testing.

Findings

Successfully simulated real-life QKD setups

Demonstrated accurate modeling of quantum teleportation

Enabled optimization of quantum network parameters

Abstract

The nature-inspired field of quantum communication has witnessed exciting developments over the past few years with countries all over the world working hard to scale their experimental quantum networks to larger sizes and increased coverage. Evidently, quantum network simulators are the need of the hour as they provide a framework for tuning hardware parameters, optimizing control protocols, and testing configurations of large and complex quantum networks before their deployment in the real world. In this work, we present ShaNQar (Simulator of Network Quantique): a modular and customizable photonic quantum network simulator. It comprises models of components such as photons, lasers, neutral density filters, sources of entangled photon pairs, communication channels, mirrors, waveplates, beam splitters, single photon detectors, and nodes which incorporate a diverse set of tunable parameters for variability and versatility. It enables adaptive timing control and synchronization with virtually no simulation time resolution limit and features a 'plug and play' design for faster coding and efficient execution. We successfully simulated previous real-life experimental setups for Quantum Key Distribution (QKD) and quantum teleportation, thereby, demonstrating the reliability and accuracy of ShaNQar.