Telecom-band Hyperentangled Photon Pairs from a Fiber-based Source

Quantum networks exploit the unique properties of quantum mechanics to enable communication and networking tasks unavailable to existing distributed classical systems. Recently, the research community has focused considerable effort on the simulation of large-scale quantum networks with the ultimate goal of understanding their general properties, developing technical standards, and estimating their expected performance. However, comparatively little effort has been spent considering how quantum networks may impact tactical scenarios of military relevance where both quantum and classical resources may be severely constrained. Here, we develop a custom framework, called QuanTACT, for quantum network simulation explicitly designed for future integration into existing tactical simulation tools. In particular, our framework extends the existing quantum networking tool, SQUANCH, to include channel models required to simulate deployed fiber environments. Furthermore, we implement the additional subroutines needed to simulate entanglement-based quantum key distribution (QKD) and use published results from various field-deployed QKD experiments to benchmark the performance of our framework.

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Simulating quantum key distribution in fiber-based quantum networks

Vitullo

Cook

Jones

et al. 2023

Journal of Defense Modeling & Simulation

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Telecom-band Hyperentangled Photon Pairs from a Fiber-based Source

Abstract: We experimentally demonstrate the generation of telecom-band biphotons hyperentangled in both the polarization and frequency DoFs using a periodically-poled silica fiber and observe entanglement concurrences above 0.95 for both DOFs.

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Simulating quantum key distribution in fiber-based quantum networks

Simulating quantum key distribution in fiber-based quantum networks

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