A Multi-Path QKD Algorithm with Multiple Segments DOI Open Access
Liu Cheng, Xuanxuan Che,

Jianshe Xie

et al.

Journal of Cyber Security and Mobility, Journal Year: 2024, Volume and Issue: unknown, P. 193 - 214

Published: Feb. 12, 2024

Quantum Key Distribution (QKD) provides unconditional peer-to-peer security based on the principles of quantum physics. By utilizing relay nodes, QKD can be extended over longer distances. However, introduction nodes brings both and communication success rates issues. To tackle those issues we propose an enhanced multi-path scheme. The key features our proposal are as follows: 1. taking reliability one algorithm inputs,making scheme more suitable for partially trusted (PTQKD) networks. 2. using Multi-Segment Multi-Path approach increases difficulty attackers to obtain complete information improves PTQKD. 3. adaptive routing generates a sufficient number diverse paths node contribution rate, freshness, reliability. We conducted theoretical analysis algorithm,and simulation results PTQKD demonstrate that method outperforms traditional methods in terms transmission rate. This advancement has potential enhance adoption

Language: Английский

Lighting the Way Forward: The Bright Future of Photonic Integrated Circuits DOI Creative Commons
Muhammad A. Butt, Bartosz Janaszek, Ryszard Piramidowicz

et al.

Sensors International, Journal Year: 2025, Volume and Issue: unknown, P. 100326 - 100326

Published: Jan. 1, 2025

Language: Английский

Citations

4
The quantum internet: A synergy of quantum information technologies and 6G networks DOI Creative Commons
Georgi Gary Rozenman, Neel Kanth Kundu, Ruiqi Liu

et al.

IET Quantum Communication, Journal Year: 2023, Volume and Issue: 4(4), P. 147 - 166

Published: Oct. 22, 2023

Abstract The quantum internet is a cutting‐edge paradigm that uses the unique characteristics of technology to radically alter communication networks. This new network type expected collaborate with 6G networks, creating synergy will fundamentally how we communicate, engage, and trade information. improved security, increased speed, capacity lead emergence broad variety applications services. current state its integration networks are summarised in this study, an emphasis on key challenges untapped possibilities. main goal get knowledge about might impact future several economic societal sectors.

Language: Английский

Citations

42
High-speed integrated QKD system DOI
Rebecka Sax, Alberto Boaron, Gianluca Boso

et al.

Photonics Research, Journal Year: 2023, Volume and Issue: 11(6), P. 1007 - 1007

Published: April 7, 2023

Quantum key distribution (QKD) is nowadays a well-established method for generating secret keys at distance in an information-theoretically secure way, as the secrecy of QKD relies on laws quantum physics and not computational complexity. In order to industrialize QKD, low-cost, mass-manufactured, practical setups are required. Hence, photonic electronic integration sender’s receiver’s respective components currently spotlight. Here we present high-speed (2.5 GHz) integrated setup featuring transmitter chip silicon photonics allowing modulation accurate state preparation, well polarization-independent low-loss receiver aluminum borosilicate glass fabricated by femtosecond laser micromachining technique. Our system achieves raw bit error rates, rates equivalent much more complex state-of-the-art based discrete [ Boaron A. et al. , Phys. Rev. Lett. 121 190502 ( 2018 ) ].

Language: Английский

Citations

35
Silicon-based decoder for polarization-encoding quantum key distribution DOI Creative Commons
Yongqiang Du, Xun Zhu, Xin Hua

et al.

Chip, Journal Year: 2023, Volume and Issue: 2(1), P. 100039 - 100039

Published: Feb. 16, 2023

Silicon-based polarization-encoding quantum key distribution (QKD) has been widely studied, owing to its low cost and robustness. However, prior studies have utilized off-chip devices demodulate the states or perform polarization compensation, given difficulty of fabricating polarized independent components on chip. In this paper we propose a fully chip-based decoder for QKD. The chip realizes state analyzer compensates BB84 protocol without requiring additional hardware. It is based polarization-to-path conversion method that uses splitter-rotator. was fabricated using standard silicon photonics foundry; it compact design suitable mass production. experimental stability test, an average bit error rate 0.59% achieved through continuous operation 10 h any feedback. Furthermore, developed feedback algorithm, enabled automatic compensation fiber drift, which emulated by random scrambler. case QKD demonstration, obtained finite-key secret 240 bps over spool 100 km. This study represents important step toward integrated, practical, large-scale deployment systems.

Language: Английский

Citations

30
Resource-efficient quantum key distribution with integrated silicon photonics DOI
Kejin Wei, Xiao Hu, Yongqiang Du

et al.

Photonics Research, Journal Year: 2023, Volume and Issue: 11(8), P. 1364 - 1364

Published: May 17, 2023

Integrated photonics provides a promising platform for quantum key distribution (QKD) system in terms of miniaturization, robustness, and scalability. Tremendous QKD works based on integrated have been reported. Nonetheless, most current chip-based implementations require additional off-chip hardware to demodulate states or perform auxiliary tasks such as time synchronization polarization basis tracking. Here, we report demonstration resource-efficient BB84 with silicon-based encoder decoder. In our scheme, the compensation are implemented relying preparation measurement generated by on-chip devices; thus, need no hardware. The experimental tests show that scheme is highly stable low intrinsic bit error rate 0.50 % ±0.02 6 h continuous run. Furthermore, over commercial fiber channel up 150 km, enables realization secure at 866 bit/s. Our paves way low-cost, wafer-scale manufactured system.

Language: Английский

Citations

23
Frequency-bin entanglement-based Quantum Key Distribution DOI Creative Commons
Noemi Tagliavacche, Massimo Borghi,

Giulia Guarda

et al.

npj Quantum Information, Journal Year: 2025, Volume and Issue: 11(1)

Published: April 5, 2025

Language: Английский

Citations

1
A cost-efficient quantum access network with qubit-based synchronization DOI Creative Commons

Chunfeng Huang,

Ye Chen, Tingting Luo

et al.

Science China Physics Mechanics and Astronomy, Journal Year: 2024, Volume and Issue: 67(4)

Published: Feb. 27, 2024

Language: Английский

Citations

9
High-dimensional quantum key distribution implemented with biphotons DOI Creative Commons
Comfort Sekga, Mhlambululi Mafu, Makhamisa Senekane

et al.

Scientific Reports, Journal Year: 2023, Volume and Issue: 13(1)

Published: Jan. 21, 2023

We present a high-dimensional measurement device-independent (MDI) quantum key distribution (QKD) protocol employing biphotons to encode information. exploit the as qutrits improve tolerance error rate. Qutrits have larger system; hence they carry more bits of classical information and improved robustness against eavesdropping compared qubits. Notably, our proposed is independent devices, thus eliminating possibility side-channel attacks. Also, we employ finite analysis approach study performance under realistic conditions where resources are used. Furthermore, simulated secret rate for in terms transmission distance different fixed amounts signals. The results prove that this achieves considerable moderate 90 km by using [Formula: see text] Moreover, expected was examine protocol's at various intrinsic values, caused misalignment instability due optical system. These show reasonable rates achieved with minimum data size about signals which realizable current technology. Thus, implementing MDI-QKD while allowing errors system makes giant step forward toward realizing practical QKD implementations.

Language: Английский

Citations

15
Advances in artificial intelligence and machine learning for quantum communication applications DOI Creative Commons
Mhlambululi Mafu

IET Quantum Communication, Journal Year: 2024, Volume and Issue: 5(3), P. 202 - 231

Published: April 16, 2024

Abstract Artificial intelligence (AI) and classical machine learning (ML) techniques have revolutionised numerous fields, including quantum communication. Quantum communication technologies rely heavily on resources, which can be challenging to produce, control, maintain effectively ensure optimum performance. ML has recently been applied networks mitigate noise‐induced errors analyse protocols. The authors systematically review state‐of‐the‐art applications advance theoretical experimental central protocols, specifically key distribution, teleportation, secret sharing, networks. Specifically, the survey progress how and, more broadly, AI optimise various components of a system. This resulted in ultra‐secure protocols with optimised generation rates as well efficient robust Integrating opens intriguing prospects for securing facilitating reliable large‐scale between multiple parties. Most significantly, potential gradually develop maturity future internet.

Language: Английский

Citations

6
Experimental demonstration of Continuous-Variable Quantum Key Distribution with a silicon photonics integrated receiver DOI Creative Commons
Yoann Piétri, Luis Trigo Vidarte, Matteo Schiavon

et al.

Optica Quantum, Journal Year: 2024, Volume and Issue: 2(6), P. 428 - 428

Published: Aug. 19, 2024

Quantum key distribution (QKD) is a prominent application in the field of quantum cryptography, providing information-theoretic security for secret exchange. The implementation QKD systems on photonic integrated circuits (PICs) can reduce size and cost such facilitate their deployment practical infrastructures. To this end, continuous-variable (CV) are particularly well-suited as they do not require single-photon detectors, whose integration presently challenging. Here we present CV-QKD receiver based silicon PIC capable performing balanced detection. We characterize its performance laboratory setup using frequency multiplexed pilot scheme with specifically designed data processing allowing high modulation rates. obtained excess noise values compatible asymptotic rates 2.4 Mbit/s 220 kbit/s at an emulated distance 10 km 23 km, respectively. These results demonstrate potential technology toward fully devices suitable high-speed, metropolitan-distance secure communication.

Language: Английский

Citations

5