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arXiv · 1902.07921

Inter-satellite Quantum Key Distribution at Terahertz Frequencies

Ziqing Wang·Robert Malaney·Jonathan Green
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Abstract

Terahertz (THz) communication is a topic of much research in the context of high-capacity next-generation wireless networks. Quantum communication is also a topic of intensive research, most recently in the context of space-based deployments. In this work we explore the use of THz frequencies as a means to achieve quantum communication within a constellation of micro-satellites in Low-Earth-Orbit (LEO). Quantum communication between the micro-satellite constellation and high-altitude terrestrial stations is also investigated. Our work demonstrates that THz quantum entanglement distribution and THz quantum key distribution are viable deployment options in the micro-satellite context. We discuss how such deployment opens up the possibility for simpler integration of global quantum and wireless networks. The possibility of using THz frequencies for quantum-radar applications in the context of LEO deployments is briefly discussed.

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Ziqing Wang, Robert Malaney, Jonathan Green. 2019-02-21. Inter-satellite Quantum Key Distribution at Terahertz Frequencies. https://doi.org/10.1109/icc.2019.8761168

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