Quantum Networking Solutions

In a First, Scientists Sent Quantum Messages a Record Distance Over a Traditional Network - MSN Scientists have sent quantum information across a record-breaking 158 miles using ordinary computers and fiber-optic cables. It is the first time coherent quantum communication—an ultrasecure means of transmitting data—has been achieved using existing telecommunications infrastructure, without the expensive cryogenic cooling that is typically required. “Our equipment was running alongside the fibers that we use for regular communication literally buried underneath the roads and train stations,” said Mirko Pittaluga, a physicist and lead author of a study published Wednesday in Nature describing the work. Integrating the technology into existing infrastructure using largely off-the-shelf equipment is a key step in expanding the accessibility of quantum communication and its use in encrypting information for more secure transmission of data, according to multiple physicists and engineers who weren’t involved in the study. “This is about as real-world as one could imagine,” said David Awschalom, a professor of physics and molecular engineering at the University of Chicago who wasn’t a part of the new work. “It’s an impressive, quite beautiful demonstration.” Classical digital information is communicated over the internet in units known as bits that have fixed values of 1 or 0. In contrast, quantum information is transmitted in qubits, which can store multiple values at once, making quantum communications more secure. Pittaluga and his colleagues at Toshiba Europe sent quantum information from regular computers hooked into the telecommunications network at data centers in the German cities of Kehl and Frankfurt, relaying them through a detector at a third data center roughly midway between them in Kirchfeld. The three-location setup enabled the group to extend the distance the messages were sent more than 150 miles, an uninterrupted distance only ever achieved in a laboratory environment. Working at these types of distances, Awschalom said, means that quantum information could be sent across entire metropolitan areas or between nearby cities, making it useful for hospitals, banks and other institutions, for which secure communications are paramount. #cybersecurity #tradtitional #networking #quantumcomputing #qubits #securecommunications

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

Single-Photon Teleportation Between Distant Quantum Dots Achieved for the First Time In a landmark advance toward a functional quantum internet, European researchers have teleported the polarization state of a single photon from one semiconductor quantum dot to another physically separate dot—something never before accomplished. This breakthrough shows that quantum dots can serve as scalable, deterministic building blocks for future ultra-secure communication networks. Key Developments • The experiment teleported a photon’s polarization across a 270-meter free-space optical link between two university buildings, using independent quantum dots rather than photons generated from the same emitter. • Achieving teleportation with dissimilar emitters removes a long-standing roadblock to building quantum relays and repeaters, which are essential for long-distance quantum networking. • The teleportation fidelity reached 82 percent—exceeding the classical limit by more than 10 standard deviations—thanks to GPS timing synchronization, ultra-fast photon detectors, and atmospheric-turbulence stabilization. • The result reflects a decade of coordinated European research in materials science, nanofabrication, and optical quantum engineering, with contributions from Paderborn, Rome, Linz, Würzburg, and others. • A parallel team in Stuttgart and Saarbrücken reported a similar result through frequency conversion, signaling rapid progress across Europe. Broader Implications This achievement sets the stage for the next major milestone: entanglement swapping between two quantum dots—the first true quantum relay using deterministic photon sources. Such systems would allow quantum information to hop across networks without loss, forming the backbone of future quantum communication, secure data channels, and distributed quantum computing. The demonstration proves that quantum-dot-based devices can interoperate across real-world optical links, marking a decisive step toward a scalable quantum internet. I share daily insights with 35,000+ followers across defense, tech, and policy. If this topic resonates, I invite you to connect and continue the conversation. Keith King https://lnkd.in/gHPvUttw

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

Under the streets of Manhattan and Brooklyn. Through 60 Hudson, one of the most connected carrier hotels in the world. Real quantum entanglement at scale on 17.6 km of standard telecom fiber. With swapping rates 3+ orders of magnitude beyond prior efforts and fidelity above 99%. This is the full quantum networking stack coming together — hardware, protocol, control, orchestration. Most importantly, we ran this without the shared laser crutch that makes lab experiments unscalable by design. This real-world demo used fully independent quantum sources at each endpoint. With Cisco's quantum software stack handling timing coordination at picosecond precision across three geographically separated nodes using the White Rabbit protocol. Qunnect's room-temperature hardware at the edges. And cryogenic equipment only at the hub for efficiency. Any new nodes could be added to this network without touching the sync infrastructure. And with clean control and data plane separation.   Applying design patterns that scaled the classical internet to quantum networking. I wrote about what this milestone means and how it leads us one step closer to our vision of a quantum data center network, on the Cisco blog today. 🔗 Link in comments. 📸 Photo of Manhattan from the Brooklyn end, by me.

In a world-first, U.S. researchers have teleported a quantum state of light across 30 kilometers of standard internet fiber while normal web traffic flowed through the same cables. This marks the first time quantum teleportation has succeeded over a live, public-style network. The team synchronized quantum photons with regular data signals, keeping their fragile quantum properties intact throughout the journey. The result? Proof that quantum communication can coexist with today’s internet no massive infrastructure overhaul needed. The implications are staggering: ultra-secure, unhackable communication, powered by the laws of physics. The dream of a global quantum internet is no longer science fiction it’s happening now. Sources: Oxford, Caltech, U.S. Department of Energy, Nature Photonics, National Geographic

The quantum networking land grab just went transatlantic. Deutsche Telekom and Qunnect demonstrated quantum information teleportation over 30 km of live commercial fiber in Berlin - on active infrastructure carrying regular data traffic - at ~90% average accuracy. Days earlier, Cisco and Qunnect ran metro-scale quantum networking across 17.6 km of deployed New York City fiber. Two continents. Two major incumbents. Same playbook. Here’s what most people are missing: This isn’t a science story. It’s an infrastructure positioning move. A Deutsche Telekom board member said it plainly: “Our fibre optic network is quantum ready.” That word “ready” is doing enormous strategic work. It’s how incumbents position themselves as the default platform before the market realizes there was a choice. The pattern never changes: → the tech leaves the lab → incumbents embed it into existing infrastructure → the interconnect layer quietly captures value from everything built above it Cloud followed this script. 5G followed this script. Quantum networking is following it now, except this time, two continents are running the play simultaneously. The question isn’t whether quantum networks will matter. It’s who will own the rails when they scale. So: who becomes the first true buyer: telcos hardening their fiber, hyperscalers linking distributed quantum compute, or finance paying for quantum-secure links?

Canada has achieved one of the most advanced cybersecurity breakthroughs in the world by connecting multiple cities through a quantum-entangled communication network—a system considered physically impossible to hack. Unlike traditional internet encryption, which can be decoded with powerful computers or future AI, quantum entanglement uses particles whose states are linked instantly across any distance. If someone tries to intercept the communication, the particles immediately “break” their entanglement, alerting both ends instantly. This network forms the backbone of what scientists call Quantum Key Distribution (QKD), where encryption keys are transmitted using quantum particles—meaning they cannot be copied, intercepted, or altered. Canada is currently running these tests between major urban centers including Toronto, Ottawa, and Montreal, creating one of the first long-distance quantum-secure communication corridors in North America. This is a critical breakthrough for banking systems, national security, government communications, and scientific data transfer. Quantum communication is not just about speed; it's about absolute secrecy. The system ensures that not even future quantum computers will be capable of breaking into classified networks—something experts worry about as AI and supercomputers evolve. Canada’s progress places it alongside China and parts of Europe, all racing to build the first truly unhackable internet. As cyberattacks become more sophisticated, quantum networks may soon become the global standard for secure communication.

Researchers at the University of Pennsylvania demonstrated the transmission of quantum signals over Verizon’s live commercial fiber network in Philadelphia, moving beyond lab-only tests. The breakthrough relies on a silicon photonics “Q-Chip” that bundles quantum and classical data into standard IP packets, enabling coexistence without disruption. A key advance is automatic noise correction without directly measuring quantum states, preserving entanglement. Because it uses standard internet protocols, the approach is compatible with existing infrastructure, easing deployment. While proven at metropolitan scale, extending this capability to long-distance and global networks remains the next major challenge. https://lnkd.in/dg4TZerZ