Results 71 to 80 of about 7,608 (211)

QKD

open access: yes
Abstract QKD (Quantum Key Distribution) promises information-theoretical security by using quantum states to generate shared cryptographic key material and to reveal eavesdropping attempts through unavoidable physical disturbances.
Ernst Piller, Hubert Schölnast
openaire   +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  

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

Security‐Enhanced Differential Binary‐Phase‐Shift‐Keying Quantum Key Distribution With a Wavelength‐Switchable Single‐Photon Carrier

open access: yesAdvanced Photonics Research, Volume 7, Issue 6, June 2026.
A single‐chip dual‐wavelength coherent photon source is proposed to add parametric uncertainty and improve the security of single‐photon differential binary‐phase‐shift‐keying quantum key distribution. This wavelength‐uncertain coding or decoying operation enables flexible and secure D‐BPSK‐QKD transmission over a wavelength‐division‐multiplexed ...
Sze‐En Lai   +4 more
wiley   +1 more source

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

Advances in Chip-Based Quantum Key Distribution

open access: yesEntropy, 2022
Quantum key distribution (QKD), guaranteed by the principles of quantum mechanics, is one of the most promising solutions for the future of secure communication.
Qiang Liu   +6 more
doaj   +1 more source

Dynamic Search‐Based Cluster Head Selection Method for Resource Occupation Protection Switching in Optical Fiber Communication Networks

open access: yesEngineering Reports, Volume 8, Issue 6, June 2026.
This paper proposes a dynamic search cluster head selection method for resource occupancy protection switching. By integrating multidimensional fitness functions, energy consumption models, and closed‐loop control mechanisms, and combining optimized dynamic search strategies, the optimal cluster head is selected.
Lei Peng   +6 more
wiley   +1 more source

Integrating QKD and classical optical networks: An SDN control approach

open access: yes, 2023
This demo presents an SDN-based control framework for integrating Quantum Key Distribution (QKD) with classical optical networks. It addresses limitations of existing standards, enabling efficient and secure integration of QKD into communication networks.
Giorgetti A.   +6 more
core   +1 more source

Preserving Quantum Coherence in Thermal Noisy Systems Via Qubit Frequency Modulation

open access: yesAdvanced Quantum Technologies, Volume 9, Issue 6, June 2026.
Frequency modulation is shown to preserve quantum coherence in a thermal phase‐covariant environment only under specific noise conditions. It protects a qubit against thermal dissipation from a Lorentzian reservoir, but fails against thermal pure dephasing from an Ohmic reservoir.
Mahshid Khazaei Shadfar   +5 more
wiley   +1 more source

Experimental authentication of quantum key distribution with post-quantum cryptography

open access: yesnpj Quantum Information, 2021
Quantum key distribution (QKD) can provide information theoretically secure key exchange even in the era of quantum computers. However, QKD requires the classical channel to be authenticated, the current method for which is pre-sharing symmetric keys ...
Liu-Jun Wang   +11 more
doaj   +1 more source

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