aiqbench analysis
This research introduces a high-fidelity Monte Carlo simulator designed to model photon behavior for the QEYSSat quantum satellite mission, addressing critical accuracy gaps in quantum key distribution security. By probabilistically accounting for complex physical effects like afterpulsing, the tool provides a robust baseline for predicting secure key lengths and validating experimental data in space-based quantum networks. This work advances the practical deployment of quantum communication systems by bridging the gap between simplified analytical models and real-world satellite constraints.
Towards a Digital Twin for the Ground to QEYSSat Quantum Link
arXiv:2608.21968v1 Announce Type: new Abstract: Simulations of physical systems require high-fidelity models to accurately represent reality. Simple models may be analytically tractable, but may not be sufficiently representative of reality for the given application. The cost of this simplicity is accuracy, or in the case of quantum key distribution, provable security. Sources of this accuracy gap include the difficulty of modelling physical effects which do not lend themselves well to analytical descriptions, such as afterpulsing. Here, we introduce a novel Monte Carlo based photon emission, transmission, and detection simulator, designed in the context of the Quantum Encryption and Science Satellite (QEYSSat) mission. Within this simulator, every major physical effect a photon may experience during an experiment, from emission to detection, can be accounted for in a probabilistic manner. This methodology allows for the inclusion of experimental parameters which are relevant for a satellite mission, and their impacts on secure key lengths. This simulator serves as a comprehensive baseline to predict and validate experimental data for the upcoming QEYSSat mission.
Abstract:Simulations of physical systems require high-fidelity models to accurately represent reality. Simple models may be analytically tractable, but may not be sufficiently representative of reality for the given application. The cost of this simplicity is accuracy, or in the case of quantum key distribution, provable security. Sources of this accuracy gap include the difficulty of modelling physical effects which do not lend themselves well to analytical descriptions, such as afterpulsing. Here, we introduce a novel Monte Carlo based photon emission, transmission, and detection simulator, designed in the context of the Quantum Encryption and Science Satellite (QEYSSat) mission. Within this simulator, every major physical effect a photon may experience during an experiment, from emission to detection, can be accounted for in a probabilistic manner. This methodology allows for the inclusion of experimental parameters which are relevant for a satellite mission, and their impacts on secure key lengths. This simulator serves as a comprehensive baseline to predict and validate experimental data for the upcoming QEYSSat mission.
arXiv:2608.21968 [quant-ph]
(or arXiv:2608.21968v1 [quant-ph] for this version)
https://doi.org/10.48550/arXiv.2608.21968 Focus to learn more arXiv-issued DOI via DataCite (pending registration)
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Full text under the publisher's open licence · 255 words
