Satellites offer the means to extend quantum communication and quantum key distribution towards global distances. We will outline the proposed QEYSSat mission proposal, which involves a quantum receiver onboard a satellite that measures quantum signals sent up from the ground. We present recent studies on the expected performance for quantum links from ground to space. Further studies include the demonstration of high-loss quantum transmission, and analyzing the effects of a fluctuating optical link on quantum signals and how these fluctuations can actually be exploited to improve the link performance.
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T. Jennewein ; J. P. Bourgoin ; B. Higgins ; C. Holloway ; E. Meyer-Scott, et al.
QEYSSAT: a mission proposal for a quantum receiver in space
", Proc. SPIE 8997, Advances in Photonics of Quantum Computing, Memory, and Communication VII, 89970A (February 19, 2014); doi:10.1117/12.2041693; http://dx.doi.org/10.1117/12.2041693