Results 51 to 60 of about 12,109 (110)

Twin-field quantum key distribution with passive-decoy state

open access: yesNew Journal of Physics, 2020
Twin-Field quantum key distribution (TF-QKD) and its variants, e.g. phase-maching QKD, sending-or-not-sending QKD, and no phase post-selection TFQKD promise high key rates at long distance to beat the rate distance limit without a repeater.
Jun Teng   +10 more
doaj   +1 more source

A Survey of Machine Learning Assisted Continuous-Variable Quantum Key Distribution

open access: yesInformation, 2023
Continuous-variable quantum key distribution (CV-QKD) shows potential for the rapid development of an information-theoretic secure global communication network; however, the complexities of CV-QKD implementation remain a restrictive factor.
Nathan K. Long   +2 more
doaj   +1 more source

Incremental Shifts, Strategic Orbits: The Evolution of EU Space Policy Through Gradual Security Linkages

open access: yesGlobal Policy, EarlyView.
ABSTRACT This article examines the evolution of European Union (EU) space policy through the lens of historical institutionalism, highlighting how security and defence considerations have been incrementally integrated into a domain originally framed as civilian and scientific.
Gustavo G. Müller, Philip De Man
wiley   +1 more source

معرفی یک نسخه حالت فریب از پروتکل چند بعدی قطبش-فاز و تشریح نحوه پیاده‌سازی و اجرای آن [PDF]

open access: yesپدافند الکترونیکی و سایبری
یک مشکل همیشگی در پیاده‌سازی تجربی سامانه‌های توزیع کلید کوانتومی (QKD)، تولید تک‌فوتون ‌است. روند متداولی که برای تولید تک‌فوتون‌ها به کار می‌رود، استفاده از پالس‌های لیزری تضعیف شده است. در این صورت، شمار فوتون‌ها از یک توزیع پواسونی پیروی می‌کند.
علی مهری تونابی   +1 more
doaj  

Impact of fiber dispersion on the performance of entanglement-based dispersive optics quantum key distribution

open access: yesJournal of Electronic Science and Technology, 2021
Dispersive optics quantum key distribution (DO-QKD) based on energy-time entangled photon pairs is an important QKD scheme. In DO-QKD, the arrival time of photons is used in key generation and security analysis, which would be greatly affected by fiber ...
Jing-Yuan Liu   +3 more
doaj   +1 more source

Enhancing Cloud‐Based Healthcare Security With Quantum‐Secure HealthChain: A Quantum Computing and Blockchain Integrated Framework

open access: yesHealth Science Reports, Volume 9, Issue 5, May 2026.
ABSTRACT Background and Aims Rising quantum hazards and flaws in conventional encryption make cloud‐based healthcare data security harder. Quantum‐Secure HealthChain, a new architecture using blockchain and quantum computing, improves medical data security, patient privacy, and data fidelity. Methods To prevent quantum attacks, the proposed system uses
Rajesh Bose   +6 more
wiley   +1 more source

Enhanced Coexistence of Quantum Key Distribution and Classical Communication over Hollow-Core and Multi-Core Fibers

open access: yesEntropy
In this paper, we investigate the impact of classical optical communications in quantum key distribution (QKD) over hollow-core fiber (HCF), multi-core fiber (MCF) and single-core fiber (SCF) and propose wavelength allocation schemes to enhance QKD ...
Weiwen Kong   +12 more
doaj   +1 more source

Numerical method for finite-size security analysis of quantum key distribution

open access: yesPhysical Review Research, 2022
Quantum key distribution (QKD) enables secure information exchange with untrusted quantum links between remote communication parties. A central task in the studies of QKD protocols is security analysis, which aims at deriving the length of the final key ...
Hongyi Zhou   +2 more
doaj   +1 more source

Security Analysis of Sending or Not-Sending Twin-Field Quantum Key Distribution with Weak Randomness

open access: yesEntropy, 2022
Sending-or-not sending twin-field quantum key distribution (SNS TF-QKD) has the advantage of tolerating large amounts of misalignment errors, and its key rate can exceed the linear bound of repeaterless quantum key distribution.
Xiao-Lei Jiang   +5 more
doaj   +1 more source

Versatile CRISPR‐Cas Tools for Gene Regulation in Zebrafish via an Enhanced Q Binary System

open access: yesAdvanced Science, Volume 13, Issue 23, 23 April 2026.
This study introduces CRISPR‐Q, a transgenic CRISPR‐Cas system leveraging the QFvpr/QUAS binary expression platform in zebrafish. CRISPR‐Q overcomes previous challenges in achieving stable and efficient gene regulation. By enabling precise spatiotemporal control of transcript knockdown (CRISPR‐QKD) and gene activation (CRISPR‐Qa), it provides a ...
Miaoyuan Shi   +13 more
wiley   +1 more source

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