2020
DOI: 10.48550/arxiv.2005.10468
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Feasibility Assessment For Practical Continuous Variable Quantum Key Distribution Over The Satellite-to-Earth Channel

Sebastian Kish,
Eduardo Villaseñor,
Robert Malaney
et al.

Abstract: Currently, quantum key distribution (QKD) using continuous variable (CV) technology has only been demonstrated over short-range terrestrial links. Here we attempt to answer whether CV-QKD over the much longer satellite-to-Earth channel is feasible. To this end, we first review the concepts and technologies that will enable CV-QKD over the satellite-to-Earth channels. We then consider, in the infinite key limit, the simplest-to-deploy QKD protocols, the coherent state (CS) QKD protocol with homodyne detection a… Show more

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“…According to the results from section 3.5 and appendix E, the total excess noise in the nighttime is set to 0.0156 SNU. Note that the imperfect detection at the receiver side can also introduce excess noise [46], which is beyond the scope of this work about atmospheric effects. Figure 12 demonstrates the secret key rate.…”
Section: Security Analysismentioning
confidence: 99%
“…According to the results from section 3.5 and appendix E, the total excess noise in the nighttime is set to 0.0156 SNU. Note that the imperfect detection at the receiver side can also introduce excess noise [46], which is beyond the scope of this work about atmospheric effects. Figure 12 demonstrates the secret key rate.…”
Section: Security Analysismentioning
confidence: 99%