Phase-Encoded Quantum Secure Direct Communication over 11.4 km Hybrid Free-Space and Fiber Links

First km-scale phase-encoded QSDC demonstrated over 1.4 km urban free-space + 10 km fiber, achieving 99.07% interference visibility, 2.38% QBER, and 4.22 kbps — an 8× rate and 140× distance improvement over prior free-space QSDC.

#QuantumCommunication #QuantumNetworking #Research

Fundamental Limits on Polarization Entanglement Distribution in Optical Fiber

Pirandola derives capacity bounds for polarization entanglement distribution in optical fiber using an erasure-Pauli channel model. Active polarization control enables ~5M ebits/s at 100km, with results proven robust against detector dark counts.

#QuantumNetworking #QuantumCommunication #Research

Two-Photon Zernike State Propagation Through Atmospheric Turbulence

Exact discrete algebraic framework for SPDC two-photon Zernike states in turbulence shows decoherence is dominated by low-order aberration modes. Partial AO correcting to 6th radial order nearly fully restores spatial quantum correlations.

#QuantumPhotonics #QuantumCommunication #Research

Kilometer-Scale Drone-Based CV-QKD Under Daylight and Relative Motion

World-first km-scale drone QKD network: 1.2 km free-space link at 2.76 kbps and 70.94 kbps drone-to-UGV at 1 m/s relative motion, using CV-QKD with adaptive polarization correction and Doppler compensation.

#DroneQKD #QuantumCommunication #Research

Glass-Based Quantum Chip Enables High-Speed Secure Communication Researchers from the University of Padua, Politecnico di Milano, and the CNR Institute for Photonics and Nanotechnologies have developed a novel quantum communication device using borosilicate glass. Reported in Advanced Photonics, the team created a high-performance, laser-written quantum coherent receiver directly inside the glass. Unlike traditional silicon-based receivers, this glass-based system offers low optical loss, polarization independence, and long-term stability, making it compatible with existing fiber-optic networks. The chip integrates tunable heterodyne detection, beam splitters, thermo-optic phase shifters, and three-dimensional waveguides to enable precise measurement of quantum signals. This versatility allows the same device to function as both a quantum random number generator (QRNG) and a continuous-variable quantum key distribution (CV-QKD) system. The QRNG achieved a record-secure random bit generation rate of 42.7 Gbit/s, while the CV-QKD system delivered a 3.2 Mbit/s secret key rate over a simulated 9.3-km fiber link. The study highlights additional benefits of glass, including environmental resilience, low-loss fiber coupling, and cost-effective fabrication via femtosecond laser writing. These properties make glass-based photonics a promising platform for scaling quantum communication beyond laboratory setups to practical, real-world networks, including potential space applications. This approach represents a significant step toward robust, high-speed quantum security technology.

Glass-Based Quantum Chip Enables High-Speed Secure Communication

🤖 IA: It's not clickbait ✅
👥 Usuarios: It's not clickbait ✅

#quantumcommunication #photonics #glasschip

View full AI summary:

A.M. Turing Award The A.M. Turing Award, ACM's most prestigious technical award, is given for major contributions of lasting importance to computing.

Hey folks!!! It finally happened! Brassard and Bennett for the Turing Award! A happy day for all in #QuantumComputing and #QuantumCommunication, but obviously mostly for the lucky couple!
amturing.acm.org

IonQ Powers Romania's National Quantum Communication Infrastructure

IonQ's quantum communication technology underpins Romania's first national-scale quantum deployment in critical infrastructure — marking IonQ's inaugural large-scale implementation within European critical infrastructure.

#QuantumCommunication #QuantumTechnology #News

Non-Gaussian Continuous Measurements Enable Near-Optimal Coherent State Discrimination

Two protocols using non-Gaussian measurements surpass the Gaussian homodyne limit for binary coherent state discrimination, approaching the Helstrom bound at low energies without requiring photon detection.

#QuantumOptics #QuantumCommunication #News

IonQ Powers Romania's National Quantum Communication Infrastructure (RoNaQCI)

IonQ's technology is now powering RoNaQCI, one of the largest operational quantum key distribution networks, marking a significant milestone in national-scale QKD deployment.

#QuantumCommunication #QKD #News

Quantum disentangled #2: Quantum and M&A: Risks and Opportunities Quantum Technologies are moving from research labs into commercially and strategically significant territory, with public and private investors…

" .. global public & private sector investments in #Quantum #Startups totalled $2B in 2024, a 50% increase year-on-year .. 3 core pillars - #QuantumComputing #QuantumCommunication #QuantumSensing - could generate up to $97B .. by 2035 & up to $198B by 2040." www.lexology.com/library/deta...

Análisis literario avanzado ok, me encanta crear aplicaciones con QLCM. 😍 #analyzer #ai #book #QuantumCommunication

Partners in the IrelandQCI project successfully demonstrated quantum-secure communication at Dublin City Council headquarters yesterday, as part of the project’s first Government use-case with a local authority. Read more: irelandqci.ie/news/
#IrelandQCI #Demonstration #QuantumCommunication

🚀 PCRL researchers published in Scientific Reports:

👉 “𝑷𝒓𝒂𝒄𝒕𝒊𝒄𝒂𝒍 𝒂𝒑𝒑𝒓𝒐𝒂𝒄𝒉 𝒕𝒐 𝒍𝒂𝒔𝒕-𝒎𝒊𝒍𝒆 𝒄𝒐𝒏𝒗𝒆𝒓𝒈𝒆𝒅 𝒇𝒓𝒆𝒆-𝒔𝒑𝒂𝒄𝒆 𝒂𝒏𝒅 𝒇𝒊𝒃𝒆𝒓 𝑸𝑲𝑫 𝒇𝒐𝒓 𝒔𝒆𝒄𝒖𝒓𝒆 𝒄𝒊𝒕𝒚-𝒔𝒄𝒂𝒍𝒆 𝒏𝒆𝒕𝒘𝒐𝒓𝒌𝒔”

Huge congratulations to the entire research team👏

Congrats to the team 👏
🔗 www.nature.com/articles/s41...

#Photonics #QuantumCommunication

This work reshapes scalable quantum communication, proving chip-based architectures can power practical, long-distance secure networks.

#PKUResearch #QuantumCommunication #QKD #Photonics #QuantumPhysics #AcademicSky

Using indium phosphide QKD chips and a silicon nitride microcomb source, the team enabled 20 users to communicate in parallel over 370 km—surpassing the repeaterless PLOB bound by up to 251%. The wafer-level platform achieved a 97.5% device yield.

#PKUResearch #QuantumCommunication #QKD #Photonics

PKU builds a chip-based #QuantumNetwork connecting 20 users over 370 km.

Wang Jianwei & Gong Qihuang (School of Physics), with Chang Lin (School of Electronics), report the first large-scale #QuantumCommunication network built on integrated photonic chips.

doi.org/10.1038/s415...

#QKD @nature.com

📣 Exciting quantum industry appointments for Walton Institute interns Jimí O'Baoill de Faoite and Dillon Broaders, who recently moved on from Walton to take up roles in quantum communication at Single Quantum and Mastercard: irelandqci.ie/2026/02/09/e...

#Quantum #QuantumCommunication #IrelandQCI

Quantum Communication: The Future of Unbreakable Digital Security Quantum communication is critical for the future of digital security, especially in a world where classical cryptography is becoming vulnerable due to advances in computing, particularly quantum compu...

If #QuantumCommunication becomes mainstream, our entire approach to digital security could change.

But how? Check here👇

www.electronicsforu.com/technology-t...

An Editors' Pick via #OPG_OpticaQ: Tunable quantum frequency conversion enabled by intermodal nonlinearity in optical fiber opg.optica.org/opticaq/fulltext.cfm #QuantumCommunication #NonlinearOpticalFibers

Can Quantum Energy Teleportation Really Transfer Information Instantly? Explore if quantum energy teleportation can truly transfer information instantly. Learn the science, experiments and future of quantum communication.

Quantum energy teleportation: fact, fiction or future? Explore instant communication, scientific breakthroughs and what this quantum leap could mean.
#QuantumEnergyTeleportation #QuantumCommunication #QuantumPhysics #InstantCommunication #TeleportationScience

Adaptive Truth Protocol (ATP): A Forensic Framework for Detecting Adaptive Information Disclosure in Distributed Systems [ES] Descripción del Proyecto Este repositorio contiene la documentación técnica y el marco de validación del Adaptive Truth Protocol (ATP). El ATP es un marco forense diseñado para detectar y medir d...

🔗 Full Evidence (Zenodo/CERN): doi.org/10.5281/zeno...

#ATP #QLCM #AlgorithmicTransparency #CyberForensics #OpenScience #DataIntegrity #QuantumCommunication #AshiraNael

Fahmi: Malaysian Telcos Must Prepare For Quantum, Satellite Tech Shift Within 10 Years Malaysian telcos must be prepared to transform their organisational structures and business models to address new challenges brought about by rapid global technological advancements, said Communica…

Fahmi: Malaysian Telcos Must Prepare For Quantum, Satellite Tech Shift Within 10 Years #quantumcommunication #quantumencryption #telco

University of Stuttgart Achieves Breakthrough in Quantum Communication Researchers achieve quantum teleportation between different photons, advancing quantum internet development.

University of Stuttgart Achieves Breakthrough in Quantum Communication

#quantumcommunication #teleportation #photons #quantumdots #research

Telecom-wavelength quantum teleportation using frequency-converted photons from remote quantum dots - Nature Communications Quantum-dot-based single photon sources represent a promising resource for future quantum networks. Here, the authors realize all-photonic quantum teleportation using photons from two remote near-infr...

A new milestone in quantum communication: researchers demonstrate teleportation of quantum states between remote quantum dots, using frequency-converted photons at telecom wavelengths.
A solid step toward scalable quantum networks.
#QuantumCommunication
#Photonics

www.nature.com/articles/s41...

Our featured team member for the November #YearOfQuantum Spotlight is Takamasa Saitoh⚛️ Learn more about how we're leading the quantum revolution at https://ow.ly/g14h50XumGm ⚛️

#IYQ2025 #Photonics #Hamamatsu #QuantumSensing #QuantumCommunication

University of Chicago Researchers Break New Ground in Quantum Communication Quantum tech at University of Chicago may extend communication up to 2,000km, paving the way for a global quantum internet.

University of Chicago Researchers Break New Ground in Quantum Communication

#quantumcommunication #technology #universityofchicago #quantuminternet

Quantum TELEPORTATION is Real: Inside the UNHACKABLE Internet Forget everything you thought you knew about teleportation. It's real, it just happened on the live internet, and it's about to trigger the biggest technological revolution of our lifetime. This isn't a lab experiment in a vacuum anymore. Researchers at Northwestern University just achieved the impossible: they successfully performed quantum teleportation using the same fiber optic cables that deliver this podcast to you. We're diving deep into the monumental breakthrough that proves the quantum internet can coexist with our current infrastructure, meaning the future is arriving far faster than anyone predicted. Join us as we explore how this changes everything for cybersecurity. We're talking about a truly unhackable internet, where your data isn't protected by complex code, but by the fundamental laws of quantum physics. What does it mean to teleport the quantum state of light? And how will this lay the foundation for a new era of quantum computing and secure quantum communication? This isn't just a science story; it's the opening chapter of a new world. The quantum revolution won't be televised—it'll be teleported. Subscribe now to understand the future before it arrives.

📣 New Podcast! "Quantum TELEPORTATION is Real: Inside the UNHACKABLE Internet" on @Spreaker #cryptography #cybersecurity #fiberoptics #futuretech #innovation #newpodcast #northwestern #physics #quantum #quantumcommunication #quantumcomputing #quantuminternet #quantumphysics #science #stem

Every now and then there s a line that brings a smile .. if not much more ...

"in #europe we want to build networks that dont depend on the erratic behaviour of some #billionaire"

Petar Popovski - Professor - #AAU

#network #dts #digitalTechSummit #quantumCommunication #QuantumTech

Quantum Communication Impact On Data Privacy Quantum communication and encryption unlock the next era of data privacy and enterprise-level security.

Quantum Communication Protocols and Their Impact on Data Privacy

read more : bi-journal.com/quantum-comm...

#QuantumCommunication #DataPrivacy #BIJournal #BIJournalnews #BusinessInsightsarticles #BIJournalinterview

🌟 Imagine a world where your data is unhackable! 🌟 Tokyo University of Science's new technique for producing single photons in optical fibers could revolutionize secure quantum communication. What does this mean for data security? Share your tho... #QuantumCommunication #TechNews #Cybersecurity LINK