Articles with "qkd" as a keyword



Advances in continuous variable measurement-device-independent quantum key distribution

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Published in 2025 at "Science China Information Sciences"

DOI: 10.1007/s11432-024-4491-9

Abstract: Continuous variable quantum key distribution (CV-QKD), utilizes continuous variables encoding such as the quadrature components of the quantized electromagnetic field and coherent detection decoding, offering good compatibility with the existing telecommunications technology and components. Continuous… read more here.

Keywords: key distribution; continuous variable; measurement device; qkd ... See more keywords

Quantum key distribution with flawed and leaky sources

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Published in 2019 at "npj Quantum Information"

DOI: 10.1038/s41534-019-0180-9

Abstract: In theory, quantum key distribution (QKD) allows secure communications between two parties based on physical laws. However, most of the security proofs of QKD today make unrealistic assumptions and neglect many relevant device imperfections. As… read more here.

Keywords: qkd; device imperfections; quantum key; key distribution ... See more keywords

Experimental vulnerability analysis of QKD based on attack ratings

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Published in 2021 at "Scientific Reports"

DOI: 10.1038/s41598-021-87574-4

Abstract: Inspired by the methodology used for classical cryptographic hardware, we consider the use of attack ratings in the context of QKD security evaluation. To illustrate the relevance of this approach, we conduct an experimental vulnerability… read more here.

Keywords: attack; vulnerability analysis; experimental vulnerability; qkd ... See more keywords

Optimal key forwarding strategy in QKD behaviours

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Published in 2024 at "Scientific Reports"

DOI: 10.1038/s41598-024-64994-6

Abstract: Nowadays QKD plays a critical role in unconditionally-secure and quantum-safe key distribution. Commercially available QKD devices are getting more popular for institutional and governmental national and international networks, but are expensive and offer limited key… read more here.

Keywords: optimal key; key forwarding; qkd; forwarding strategy ... See more keywords

Quantum key distribution using in-line highly birefringent interferometers

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Published in 2018 at "Applied Physics Letters"

DOI: 10.1063/1.5036827

Abstract: Secure communication networks enabled by commercial quantum key distribution (QKD) are already available. However, their widespread deployment will require great efforts towards reducing the currently prohibitive cost of QKD systems. Here, we propose a compact… read more here.

Keywords: qkd; key distribution; highly birefringent; line highly ... See more keywords

Exploring the Feasibility of Quantum-Based Secure Communications for Nuclear Applications

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Published in 2024 at "Nuclear Technology"

DOI: 10.1080/00295450.2024.2368977

Abstract: Abstract Recent advancements in reactor designs could offer new revolutionary capabilities, including remote monitoring, increased flexibility, and reduced operation and maintenance costs. Embracing new digital technologies would allow for operational concepts such as semiautonomous or… read more here.

Keywords: reactor; qkd; secure communications; feasibility quantum ... See more keywords

Finite-key security analysis for quantum key distribution with leaky sources

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Published in 2018 at "New Journal of Physics"

DOI: 10.1088/1367-2630/aad839

Abstract: Security proofs of quantum key distribution (QKD) typically assume that the devices of the legitimate users are perfectly shielded from the eavesdropper. This assumption is, however, very hard to meet in practice, and thus the… read more here.

Keywords: qkd; key distribution; security; finite key ... See more keywords

Mode-pairing quantum key distribution based on wavelength division multiplexing in multi-user networks

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Published in 2024 at "Physica Scripta"

DOI: 10.1088/1402-4896/ad5f61

Abstract: Mode-pairing quantum key distribution (MP-QKD), a protocol that combines high performance and flexibility, not only eliminates the need for global phase locking but also beats the rate-transmittance bound. Such remarkable characteristics are poised to further… read more here.

Keywords: key distribution; pairing quantum; qkd; mode pairing ... See more keywords

Reference-frame-independent quantum key distribution with two-way classical communication

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Published in 2024 at "Chinese Physics B"

DOI: 10.1088/1674-1056/ad6a3d

Abstract: The data post-processing scheme based on two-way classical communication (TWCC) can improve the tolerable bit error rate and extend the maximal transmission distance when used in a quantum key distribution (QKD) system. In this study,… read more here.

Keywords: two way; key distribution; qkd; quantum key ... See more keywords

Satellite-To-Earth Quantum Key Distribution via Orbital Angular Momentum

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Published in 2020 at "Physical Review Applied"

DOI: 10.1103/physrevapplied.14.064031

Abstract: In this work, we explore the feasibility of performing satellite-to-Earth quantum key distribution (QKD) using the orbital angular momentum (OAM) of light. Due to the fragility of OAM states the conventional wisdom is that turbulence… read more here.

Keywords: earth quantum; earth; quantum key; satellite earth ... See more keywords

Fully Passive Quantum Key Distribution

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Published in 2022 at "Physical Review Letters"

DOI: 10.1103/physrevlett.130.220801

Abstract: Passive implementations of quantum key distribution (QKD) sources are highly desirable as they eliminate side-channels that active modulators might introduce. Up till now, passive decoy-state and passive encoding BB84 schemes have both been proposed. Nonetheless,… read more here.

Keywords: state; quantum key; decoy state; fully passive ... See more keywords