Freiburg 2019 – wissenschaftliches Programm

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FM: Fall Meeting

FM 74: Secure Communication & Computation III

FM 74.5: Talk

Donnerstag, 26. September 2019, 15:15–15:30, 1009

Quantum Key Distribution with Small Satellites — •Ömer Bayraktar4, Peter Freiwang3, Daniel Garbe1, Matthias Grünefeld6, Roland Haber1, Lukas Knips5, Christoph Marquardt4, Leonhard Mayr3, Florian Moll2, Jonas Pudelko4, Benjamin Rödiger2, Wenjamin Rosenfeld3, Klaus Schilling1, Christopher Schmidt2, and Harald Weinfurter1, 51Center for Telematics (ZfT), Würzburg, Germany — 2German Aerospace Center (DLR) IKN, Oberpfaffenhofen, Germany — 3Ludwig-Maximilian-University (LMU), Munich, Germany — 4Max Planck Institute for the Science of Light (MPL), Erlangen, Germany — 5Max Planck Institute of Quantum Optics (MPQ), Garching, Germany — 6OHB System AG, Oberpfaffenhofen, Germany

QKD to satellites will be an important element enabling secure communication in future quantum safe network structures. After the first successful demonstration by the Chinese satellite MICIUS, the question arises how small a satellite can be designed. The space mission QUBE will test two highly integrated QKD sender modules and a quantum random number generator in a three unit CubeSat (10 x 10 x 30 cm2). The optical communication terminal OSIRIS (effective aperture 20 mm) provides a link from a low earth orbit (LEO, 500 km) to the optical ground station (60 cm telescope) at the DLR in Oberpfaffenhofen. Quantum payloads and OSIRIS require approximately one unit in volume while the remaining two units needed for systems to operate the satellite.

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