Q3Sat: quantum communications uplink to a 3U CubeSat—feasibility & design

Autor: Neumann, Sebastian Philipp, Joshi, Siddarth Koduru, Fink, Matthias, Scheidl, Thomas, Blach, Roland, Scharlemann, Carsten, Abouagaga, Sameh, Bambery, Daanish, Kerstel, Erik, Barthelemy, Mathieu, Ursin, Rupert
Přispěvatelé: Institute for Quantum Optics and Quantum Information [Innsbruck] (IQOQI), Austrian Academy of Sciences (OeAW), LAsers, Molécules et Environnement (LAME-LIPhy), Laboratoire Interdisciplinaire de Physique [Saint Martin d’Hères] (LIPhy), Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019])-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019]), Université Grenoble Alpes [2016-2019] (UGA [2016-2019]), FFG/ASAP11 Grant Number: 4927524 / 847964 (QubeSat), FFG Grant Nr. 6238191 / 854022, ESA/ESTEC Grant Nr. 4000112591/14/NL/US., We would like to acknowledge valuable discussions with Johannes Handsteiner, Bo Liu and Dominik Rauch of IQOQI Vienna.
Jazyk: angličtina
Rok vydání: 2018
Předmět:
Zdroj: EPJ Quantum Technology
EPJ Quantum Technology, EDP Sciences, 2018, 5 (4), ⟨10.1140/epjqt/s40507-018-0068-1⟩
EPJ Quantum Technology, Vol 5, Iss 1, Pp 1-24 (2018)
ISSN: 2196-0763
Popis: International audience; Satellites are the most efficient way to achieve global scale quantum communication (Q.Com) because unavoidable losses restrict fiber based Q.Com to a few hundred kilometers. We demonstrate the feasibility of establishing a Q.Com uplink with a 3U CubeSat, measuring only 10 × 10 × 34 cm3, using commercial off-the-shelf components, the majority of which have space heritage. We demonstrate how to leverage the latest advancements in nano-satellite body-pointing to show that our 4 kg CubeSat can generate a quantum-secure key, which has so far only been shown by a much larger 600 kg satellite mission. A comprehensive link budget and simulation was performed to calculate the secure key rates. We discuss design choices and trade-offs to maximize the key rate while minimizing the cost and development needed. Our detailed design and feasibility study can be readily used as a template for global scale Q.Com.
Databáze: OpenAIRE
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