Feasibility of satellite quantum key distribution
New Journal of Physics, ISSN: 1367-2630, Vol: 11, Issue: 4
2009
- 197Citations
- 111Captures
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Article Description
In this paper, we present a novel analysis of the feasibility of quantum key distribution between a LEO satellite and a ground station. First of all, we study signal propagation through a turbulent atmosphere for uplinks and downlinks, discussing the contribution of beam spreading and beam wandering. Then we introduce a model for the background noise of the channel during night-time and day-time, calculating the signal-to-noise ratio for different configurations. We also discuss the expected error-rate due to imperfect polarization compensation in the channel. Finally, we calculate the expected key generation rate of a secure key for different configurations (uplink, downlink) and for different protocols (BB84 with and without decoy states, entanglement- based Ekert91 protocol). © IOP Publishing Ltd and Deutsche Physikalische Gesellschaft.
Bibliographic Details
http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=66449119929&origin=inward; http://dx.doi.org/10.1088/1367-2630/11/4/045017; https://iopscience.iop.org/article/10.1088/1367-2630/11/4/045017; https://dx.doi.org/10.1088/1367-2630/11/4/045017; https://validate.perfdrive.com/fb803c746e9148689b3984a31fccd902/?ssa=ab2edfb6-d621-4fdc-9484-a35beb7e5cfb&ssb=99159209376&ssc=https%3A%2F%2Fiopscience.iop.org%2Farticle%2F10.1088%2F1367-2630%2F11%2F4%2F045017&ssi=f6c35d88-8427-4ee7-8645-6368ff35bb3b&ssk=support@shieldsquare.com&ssm=35939994259836782310938694036507041&ssn=cf2f0521afa87cdba4d36266dcee46b9504f17f9ea44-4e1f-4e35-b49f66&sso=295b315e-f9d9f87a371f2f0433e0e8b8ce83d75f4810a05238cb5347&ssp=97251153791719361057171959411848775&ssq=38091946982706957100505699206013717907712&ssr=NTIuMy4yMTcuMjU0&sst=com.plumanalytics&ssu=&ssv=&ssw=&ssx=eyJfX3V6bWYiOiI3ZjYwMDBjMGI2MzM1NC00OGRkLTRjNTUtODVmZS00NzZmMjgxYzE5ZDgxNzE5MzA1Njk5NDA1MjY0MTI4NDAxLTMxZGRhZWJhZDdmN2FlOGUzMTA5MCIsInV6bXgiOiI3ZjkwMDAxZTFhNWQwZC1iNGU2LTRlNDQtYWZhOC03NTExMWZmODRkOWY0LTE3MTkzMDU2OTk0MDUyNjQxMjg0MDEtMGQxYTVmMTNjZWU2NDliODMxMDkwIiwicmQiOiJpb3Aub3JnIn0=
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