Secret key rate of multi-ring M-APSK continuous variable quantum key distribution Article Swipe
Margarida Almeida
,
Daniel Pereira
,
Nelson J. Muga
,
M. Facão
,
Armando N. Pinto
,
Nuno A. Silva
·
YOU?
·
· 2021
· Open Access
·
· DOI: https://doi.org/10.1364/oe.439992
YOU?
·
· 2021
· Open Access
·
· DOI: https://doi.org/10.1364/oe.439992
Discrete modulation continuous variable quantum key distribution (DM-CV-QKD) is highly considered in real implementations to avoid the complexity of Gaussian modulation (GM), which is optimum in terms of the key rate. DM-CV-QKD systems usually consider M-symbol phase shift keying (M-PSK) constellations. However, this type of constellation cannot reach transmission distances and key rates as high as GM, limiting the practical implementation of CV-QKD systems. Here, by considering M-symbol amplitude and phase shift keying (M-APSK) constellations, we can approximate GM. Indeed, considering finite-size effects, 4 ring 64-APSK can reach 52.0 km, only 7.2 km less than GM and 282% the maximum achievable transmission distance for 8-PSK.
Related Topics
Concepts
Amplitude and phase-shift keying
Quantum key distribution
Keying
Phase-shift keying
Transmission (telecommunications)
Quadrature amplitude modulation
Modulation (music)
Mathematics
Key (lock)
Bit error rate
Computer science
Telecommunications
Optics
Algorithm
Physics
Decoding methods
Acoustics
Computer security
Photon
Metadata
- Type
- article
- Language
- en
- Landing Page
- https://doi.org/10.1364/oe.439992
- OA Status
- gold
- Cited By
- 37
- References
- 34
- Related Works
- 10
- OpenAlex ID
- https://openalex.org/W3208346388
All OpenAlex metadata
Raw OpenAlex JSON
- OpenAlex ID
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https://openalex.org/W3208346388Canonical identifier for this work in OpenAlex
- DOI
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https://doi.org/10.1364/oe.439992Digital Object Identifier
- Title
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Secret key rate of multi-ring M-APSK continuous variable quantum key distributionWork title
- Type
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articleOpenAlex work type
- Language
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enPrimary language
- Publication year
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2021Year of publication
- Publication date
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2021-10-26Full publication date if available
- Authors
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Margarida Almeida, Daniel Pereira, Nelson J. Muga, M. Facão, Armando N. Pinto, Nuno A. SilvaList of authors in order
- Landing page
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https://doi.org/10.1364/oe.439992Publisher landing page
- Open access
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YesWhether a free full text is available
- OA status
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goldOpen access status per OpenAlex
- OA URL
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https://doi.org/10.1364/oe.439992Direct OA link when available
- Concepts
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Amplitude and phase-shift keying, Quantum key distribution, Keying, Phase-shift keying, Transmission (telecommunications), Quadrature amplitude modulation, Modulation (music), Mathematics, Key (lock), Bit error rate, Computer science, Telecommunications, Optics, Algorithm, Physics, Decoding methods, Acoustics, Computer security, PhotonTop concepts (fields/topics) attached by OpenAlex
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37Total citation count in OpenAlex
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2025: 7, 2024: 9, 2023: 13, 2022: 8Per-year citation counts (last 5 years)
- References (count)
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10Other works algorithmically related by OpenAlex
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