Practical continuous-variable quantum key distribution with composable security [PDF]
Nature Communications, 2022 Continuous-variable QKD protocols are usually easier to implement than discrete-variables ones, but their security analyses are less developed. Here, the authors propose and demonstrate in the lab a CVQKD protocol that can generate composable keys secure
Nitin Jain +12 more
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Passive Continuous Variable Quantum Key Distribution through the Oceanic Turbulence [PDF]
Entropy, 2023 Continuous variable quantum key distribution (CVQKD) can be potentially implemented through seawater channels, whereas the involved oceanic turbulence has a negative effect on the maximal transmission distance of quantum communication systems.
Yiwu Zhu, Lei Mao, Hui Hu, Yijun Wang
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Mapping Guaranteed Positive Secret Key Rates for Continuous Variable Quantum Key Distribution [PDF]
EntropyThe standard way to measure the performance of existing continuous variable quantum key distribution (CVQKD) protocols is by using the achievable secret key rate (SKR) with respect to one parameter while keeping all other parameters constant.
Mikhael T. Sayat +6 more
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Hacking continuous-variable quantum key distribution using the photorefractive effect on proton-exchanged/annealed-proton-exchanged waveguide [PDF]
Scientific ReportsLithium niobate materials, which have the potential to fabricate lasers, modulation devices, and photodetectors, are widely used in quantum information processing due to their exceptional optical and electro-optical properties.
Ningyi Mao +5 more
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A novel error correction protocol for continuous variable quantum key distribution [PDF]
Scientific Reports, 2021 Reconciliation is a key element of continuous-variable quantum key distribution (CV-QKD) protocols, affecting both the complexity and performance of the entire system.
Kadir Gümüş +6 more
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An Improved Slice Reconciliation Protocol for Continuous-Variable Quantum Key Distribution [PDF]
Entropy, 2021 Reconciliation is an essential procedure for continuous-variable quantum key distribution (CV-QKD). As the most commonly used reconciliation protocol in short-distance CV-QKD, the slice error correction (SEC) allows a system to distill more than 1 bit ...
Xuan Wen +4 more
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Unidimensional Two-Way Continuous-Variable Quantum Key Distribution Using Coherent States [PDF]
Entropy, 2021 We propose a unidimensional two-way continuous-variable quantum key distribution protocol with coherent states, where the sender modulates a single quadrature of the coherent states rather than both quadratures to simplify the structure of a two-way ...
Yiming Bian, Luyu Huang, Yichen Zhang
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Thermal-State Continuous-Variable Quantum Key Distribution Under the Effects of Gravity [PDF]
EntropyContinuous-variable quantum key distribution has gradually shifted from optical fiber communication to space communication. In free-space quantum communication, the influence of gravity cannot be ignored.
Li Zhang, Jiannan Huang, Jian Zhou
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Improving free-space continuous variable quantum key distribution with adaptive optics [PDF]
Scientific ReportsA significant performance inhibitor of free-space continuous variable quantum key distribution (CVQKD) is turbulence, which gives rise to wavefront phase and amplitude aberrations.
Mikhael T. Sayat +8 more
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Underwater Wavelength Attack on Discrete Modulated Continuous-Variable Quantum Key Distribution [PDF]
EntropyThe wavelength attack utilizes the dependence of beam splitters (BSs) on wavelength to cause legitimate users Alice and Bob to underestimate their excess noise so that Eve can steal more secret keys without being detected. Recently, the wavelength attack
Kangyi Feng +5 more
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