ICC 2019 - 2019 IEEE International Conference on Communications (ICC) 2019
DOI: 10.1109/icc.2019.8762003
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Photonic Engineering for CV-QKD Over Earth-Satellite Channels

Abstract: Quantum Key Distribution (QKD) via satellite offers up the possibility of unconditionally secure communications on a global scale. Increasing the secret key rate in such systems, via photonic engineering at the source, is a topic of much ongoing research. In this work we investigate the use of photon-added states and photon-subtracted states, derived from two mode squeezed vacuum states, as examples of such photonic engineering. Specifically, we determine which engineered-photonic state provides for better QKD… Show more

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Cited by 9 publications
(11 citation statements)
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References 33 publications
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“…Thus, we will make use of this result emphasizing that the key rates presented here represent only a lower bound of the real values. For a complete discussion of how to calculate the key rate when non-Gaussian states are involved we refer the reader to [19], [20].…”
Section: Calculating the Key Rate In Cv-qkdmentioning
confidence: 99%
“…Thus, we will make use of this result emphasizing that the key rates presented here represent only a lower bound of the real values. For a complete discussion of how to calculate the key rate when non-Gaussian states are involved we refer the reader to [19], [20].…”
Section: Calculating the Key Rate In Cv-qkdmentioning
confidence: 99%
“…Several proposals for satellite-based quantum networks have been made that use satellite-to-ground transmission, ground-tosatellite transmission, or both 50,53,54,[61][62][63][64][65][66][67][68][69] . Recent experiments 65,[70][71][72][73][74][75][76] (see also ref.…”
Section: Introductionmentioning
confidence: 99%
“…For each subchannel, we adopt the same noise and efficiency parameters from our previous work. 20 Specifically, we set the excess noise 𝜀 = 0.1, the detection noise 𝜈 = 1.1 (both in vacuum noise units), the detection efficiency 𝜂 d = 0.68, and the reconciliation efficiency 𝜂 r = 0.95. We assume the number of equivalent EPR states of the PDC state created by Alice is K max = 5.…”
Section: Simulation Resultsmentioning
confidence: 99%
“…In our previous work, we have shown that for a CV-QKD protocol, the single-photon non-Gaussian operations offer a higher secret key rate and success probability relative to their multiphoton counterparts for a given type of non-Gaussian operation. 20 As such, in this work, we mainly focus on single-photon non-Gaussian operations. We will also investigate zero-photon non-Gaussian operations which we have not considered in our previouswork.…”
Section: Multimode States With Non-gaussian Operationsmentioning
confidence: 99%
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