Towards a Global Satellite Quantum Network: Optimized Entanglement Distribution in a Dynamic Satellite System

Quantum networks will undoubtedly play crucial role in advancing quantum technologies including quantum communication, distributed quantum computing, and quantum metrology. Currently a nascent topic, the fundamental understanding of how to properly and efficiently simulate usable quantum networks will have a profound impact on how to design and implement this technology on a global scale. Reaching high entanglement distribution rates over long distances through fiber or atmosphere is difficult due to exponential photon loss, and can be ameliorated by incorporating satellite links into the quantum communication network. Within this project, an optimized theoretical framework for a global network of satellites is developed.

The goal of this project is to simulate an entanglement distribution scheme via a quantum global network, in which a quantum repeater architecture is used. All relevant sources of noise and loss, as well as the capabilities of quantum memories, are accounted for in a dynamic satellite constellation. The effects various parameters have on the distribution rate and fidelity of the system are analyzed. Ultimately, a modular approach is provided for simulating a global network for various capabilities, paving the way for a global quantum internet.