Quantum Internet Development

Quantum Teleportation Achieved Over Internet for the First Time Researchers in the U.S. have successfully teleported a quantum state of light through over 30 kilometers (18 miles) of fiber optic cable while coexisting with regular internet traffic. This achievement marks a monumental step toward integrating quantum communication systems into existing telecommunications infrastructure, paving the way for future quantum internet networks. Key Highlights: • Teleportation Explained: Quantum teleportation involves transferring the quantum state of one particle to another distant particle, effectively replicating its state without physically moving the particle itself. • Overcoming Challenges: The experiment succeeded despite the interference from traditional internet data flowing through the same cables, showcasing an unprecedented level of stability and accuracy in a real-world environment. • Infrastructure Integration: The ability to teleport quantum states using existing fiber optic networks suggests that quantum and classical communication systems can share infrastructure, greatly reducing costs and accelerating deployment timelines. Why This Matters: • Quantum Internet Potential: Quantum networks promise ultra-secure encryption, seamless quantum computer connections, and advanced distributed sensing systems. • Real-World Feasibility: Demonstrating quantum teleportation in active fiber optic networks proves the technology can be scaled and deployed in real-world conditions. • Data Security: Quantum encryption methods, leveraging principles such as quantum key distribution (QKD), could make communications virtually unhackable. Researcher Insights: “This is incredibly exciting because nobody thought it was possible,” said Prem Kumar, a computing engineer at Northwestern University who led the study. “Our work shows a path towards next-generation quantum and classical networks sharing a unified fiber optic infrastructure. Basically, it opens the door to pushing quantum communications to the next level.” Implications for the Future: • Secure Communications: Enhanced encryption and ultra-secure networks could revolutionize cybersecurity. • Quantum Cloud Computing: Seamless connectivity between quantum computers across long distances could unlock unprecedented computational capabilities. • Scalable Deployment: Utilizing existing infrastructure minimizes costs and accelerates integration into global communication networks. While we’re still far from the Star Trek-style teleportation of physical objects, this achievement represents a profound advancement in quantum network engineering, bringing the vision of a global quantum internet significantly closer to reality.

Quantum computing hit a wall. Photonics became the way around it. Just published in Laser Focus World my latest analysis on why quantum networking isn't just the future—it's the make-or-break technology happening RIGHT NOW. Key insights from Global Quantum Intelligence, LLC's research: 💡 Module size limits are non-negotiable: Every quantum platform hits a hard ceiling for how many qubits can fit in a single module. Superconducting circuits face cooling constraints at ~3,000 qubits per fridge. Trapped ions destabilize beyond 100-qubit 1D chains. Neutral atoms run into optical aperture limits at 10,000. Silicon spins promise millions on paper but haven't proven thermal management. The message is clear: scaling requires networking modules, not building bigger ones. 🔗 The modular revolution arrived faster than expected: While the industry chased monolithic designs, we called the distributed future in our May 2024 report: https://lnkd.in/gkbB7Txu Twelve months later, the evidence is overwhelming: Xanadu networked quantum modules across 13km of urban fiber. PsiQuantum achieved 99.72% chip-to-chip fidelity. IonQ transformed from a compute-only player into a full-stack quantum networking company through strategic acquisitions. 💰 Capital followed the technical breakthroughs: Welinq hit 90% quantum memory efficiency. Nu Quantum shipped the first rack-mounted QNU. Sparrow Quantum raised €21.5M for deterministic photon sources. Cisco jumped in with room-temperature chips producing 200 million entangled photon pairs per second. This isn't early-stage speculation—it's a race to build infrastructure. Players making it happen: Xanadu PsiQuantum Nu Quantum Welinq Sparrow Quantum Lightsynq IonQ Cisco Oxford Ionics ID Quantique Photonic Inc. QphoX Oxford Quantum Circuits (OQC) SilQ Connect Qunnect memQ Single Quantum Quantum Opus LLC Aegiq ORCA Computing Quandela QuiX Quantum Quantum Source If you're in photonics, this is it. You're not just making components anymore—you're building the backbone that makes million-qubit machines possible. Miss this wave, and you're watching from the sidelines. Full article: https://lnkd.in/g3pYEeqc #QuantumComputing #Photonics #QuantumNetworking #DeepTech #Innovation #FutureOfComputing

Germany achieves hybrid quantum key distribution across mobile and fiber channels - Interesting Engineering Aamir Khollam The QuNET initiative now prepares to scale these systems from test sites to a nationwide quantum network linking multiple cities. Germany has taken a significant step toward secure digital communication. Researchers under the QuNET research program have shown that quantum key distribution (QKD) can work reliably across hybrid and mobile communication channels. The achievement marks a milestone for future quantum-secured networks and strengthens Germany’s push for technological sovereignty in cybersecurity. Quantum communication is gaining importance as conventional encryption faces threats from advancing computing technologies. QKD uses the principles of quantum physics to generate secure digital keys. These keys are impossible to copy undetected because the signals often contain only a handful of photons. The German Federal Ministry for Research, Technology, and Space is backing this development. It has invested €125 million (approximately US $145 million) in the QuNET project. The Fraunhofer IOF and Fraunhofer HHI work alongside the Max Planck Institute for the Science of Light, Friedrich-Alexander University Erlangen-Nuremberg, and the DLR Institute of Communication and Navigation. The consortium has completed multiple real-world tests over the past four years. #quantumcomputing #cryptography #Germany #digitalkeys #quantumkeys #fiber #mobile #networks

Breakthrough for the #quantum internet: For the first time a major telco provider has successfully conducted entangled photon experiments - on its own infrastructure. ➡️ 30 kilometers, 17 days, 99 per cent fidelity. Our teams at T-Labs have successfully transmitted entangled photons over a fiber-optic network. Over a distance comparable to travelling from Berlin to Potsdam. The system automatically compensated for changing environmental conditions in the network.   Together with our partner Qunnect we have demonstrated that quantum entanglement works reliably. The goal: a quantum internet that supports applications beyond secure point-to-point networks. Therefore, it is necessary to distribute the types of entangled photons. The so-called qubits, that are used for #QuantumComputing, sensors or memory. Polarization qubits, like the ones used for this test, are highly compatible with many quantum devices. But: they are difficult to stabilize in fibers.   From the lab to the streets of Berlin: This success is a decisive step towards the quantum internet. 🔬 It shows how existing telecommunications infrastructure can support the quantum technologies of tomorrow. This opens the door to new forms of communication.   Why does this matter for people and society?   🗨️ Improved communications: The quantum internet promises faster and more efficient long-distance communications. 🔐 Maximum security: Entanglement can be used in quantum key distribution protocols. Enabling ultra-secure communication links for enterprises and government institutions 💡Technological advancement: high-precision time synchronization for satellite networks and highly accurate sensing in industrial IoT environments will need entanglement.   Developing quantum technologies isn’t just a technical challenge. A #humancentered approach asks how these systems can be built to serve real needs and be part of everyday infrastructure. With 2025 designated as the International Year of Quantum Science and Technology, now is the time to move from research to readiness. Matheus Sena, Marc Geitz, Riccardo Pascotto, Dr. Oliver Holschke, Abdu Mudesir

👋 Hello LinkedIn community 👋 There’s an electrifying story unfolding at the frontier of technology and it starts with IBM and Cisco teaming up with a plan that could fundamentally reshape how information, AI, and crypto flow across the globe. Just unveiled: these behemoths are laying the foundation to connect quantum computers over vast distances by the early 2030s, signaling the dawn of a genuine quantum internet. Here’s where it gets both thrilling and a little spine-tingling. Picture this: today’s quantum computers are isolated giants, but IBM and Cisco want to weave them into networks that span cities, even continents. Their secret sauce? Microwave-to-optical transducers a technology that morphs the fragile signals of a quantum processor into robust optical pulses able to whistle through kilometers of fiber. These units, tagged as quantum networking units (QNU), will turn stationary “qubits” into flying information, letting data zip across new, secure quantum channels. And why now? The ripple effect for AI and crypto isn’t just hypothetical. Distributed quantum computers could crack optimization puzzles that paralyze today’s most advanced AI and may rewrite the codebook for cryptography. With experts warning that quantum breakthroughs by the 2030s could threaten everything from Bitcoin to enterprise secrets, this R&D is as much about staying ahead of tomorrow’s threats as seizing new opportunities. IBM and Cisco’s roadmap isn’t all theory. Early milestones include linking computers within the same building using new connectors, then expanding to proof-of-concept long-distance links within five years. For highly regulated sectors think finance or healthcare these advances mean a pathway to migrate safely toward quantum workflows while avoiding the “quantum cliff” waiting for anyone caught off guard. This isn’t just another lab experiment. It’s a moonshot with very real, high-stakes implications. Quantum internet isn’t for tomorrow’s scientists it’s for every AI practitioner, CISO, and innovator who wants to be ready, not left behind, when the rules of computing change forever. Join the conversation: How do you see quantum networks impacting your field and are you quantum-ready, or still watching from the sidelines? #QuantumComputing #QuantumInternet #AI #Cybersecurity #Crypto #UAEInnovation #FutureTech #IBM #Cisco

India just crossed a major milestone in the race for quantum-secure communication — and it's not science fiction anymore. DRDO & IIT Delhi have successfully demonstrated Quantum Entanglement-Based Free-Space Secure Communication — over 1 km using an optical link on campus. Here’s why these matters: 1) Entangled photons were used to create secure cryptographic keys 2) No optical fiber needed — it worked over free space. 3) Achieved ~240 bits/sec secure key rate. 4) Quantum Bit Error Rate was below 7%. So, what’s the big deal? 1) It proves that we can build secure communication systems without needing underground cables — perfect for difficult terrains, defense zones, or remote areas. 2) Even if someone tries to intercept the message, the quantum state changes — making the intrusion detectable. 3) It’s another step toward building the Quantum Internet in India. The work was led by Prof. Bhaskar Kanseri’s team at IIT Delhi and supported by DRDO under its “Centres of Excellence” initiative. #QuantumComputing #QuantumCommunication #DRDO #IITDelhi #QuantumIndia #QuantumSecurity #Photonics #Research #QuantumInternet

⚛️ Quantum Internet in the Sky: Vision, Challenges, Solutions, and Future Directions 📜 This article envisions the concept of a “Quantum Internet in the Sky”, aiming to establish ubiquitous quantum communication links among distant nodes via free-space optical channels. Our key focus is on deploying quantum communication terminals on non-terrestrial platforms, specifically unmanned aerial vehicles and satellites, at various altitudes. By highlighting the unique characteristics of these platforms compared to terrestrial counterparts, we address inherent challenges and discuss potential solutions through meticulous system designs and analyses of typical non-terrestrial quantum communication scenarios. Finally, we illuminate the path forward by proposing essential future directions that underscore the integration of high-dimensional multipartite quantum communications with sensing, computing, and intelligence for multiple users en route to realizing a fully operational Quantum Internet. ℹ️ Trinh & Sugiura, IEEE - 2025

Canadian researchers have officially linked multiple cities through a quantum-entangled communication network — creating one of the world’s first large-scale quantum internet systems. Instead of relying on traditional encryption, this network uses entangled photons to distribute quantum keys. If anyone tries to intercept the signal, the quantum state collapses instantly, alerting both parties and rendering the stolen data useless. This gives the network a level of security that even supercomputers or future AI systems cannot break. The project uses a combination of fiber-optic links and satellite-supported quantum channels, allowing secure communication over long distances — from government agencies and financial institutions to scientific laboratories. This achievement signals the beginning of a new era in cybersecurity, one where hacks, leaks, and breaches become nearly impossible. Quantum internet isn’t about speed — it’s about rewriting the rules of trust and digital protection on a national scale. #QuantumInternet #CanadaTech #CyberSecurity #QuantumPhysics #FutureTechnology #engineering #physics

Canada has taken a historic leap into the future by successfully linking cities through a quantum-entangled internet, creating one of the most secure communication networks ever built. This next-generation system uses the laws of quantum physics rather than traditional data encryption, setting a new global benchmark for digital security. At the heart of this breakthrough is quantum entanglement, a phenomenon where paired particles remain instantly connected no matter the distance between them. Any attempt to intercept or tamper with quantum data immediately alters its state, alerting users and rendering the intrusion useless. In practical terms, this makes the network theoretically immune to hacking by all existing digital technologies, including even the most advanced supercomputers. Unlike today’s internet, which relies on complex mathematical codes that can eventually be cracked, quantum communication is secured by physics itself. Canada’s network enables ultra-secure transmission of data between cities for applications such as government communications, financial systems, healthcare records, and national defense. Even future quantum computers—expected to break today’s encryption—would be powerless against this system. This achievement places Canada among the world leaders in quantum innovation, alongside only a handful of nations experimenting with real-world quantum networks. Researchers see this as a critical step toward a full quantum internet, where global communications could be protected against espionage, cyber warfare, and large-scale data breaches. Beyond security, the technology opens doors to faster data validation, ultra-precise time synchronization, and entirely new forms of digital infrastructure. While widespread public use may still be years away, the foundation has now been laid. Canada’s quantum network is more than a technological upgrade—it represents a shift in how humanity protects information. In an era of rising cyber threats, this development signals a future where trust, privacy, and security are built into the very fabric of communication itself. #QuantumInternet #CyberSecurity #FutureTechnology #ScientificBreakthrough #lifestyle