Quantum computing

Quantum light beats AI at its own game in surprise photonic experiment

A small-scale quantum device developed by researchers at the University of Vienna has outperformed advanced classical machine learning algorithms—including some used in today’s leading AI systems—using just two photons and a glass chip.

The experiment suggests that useful quantum advantage could arrive far sooner than previously thought, not in massive future machines but in today’s modest photonic setups.

The team’s six-mode processor doesn’t rely on raw speed to beat traditional systems. Instead, it harnesses a uniquely quantum property: the way identical particles interfere. This interference naturally computes mathematical structures known as permanents, which are computationally expensive for classical systems.

By embedding these quantum calculations into a pattern-recognition task, the researchers consistently achieved higher classification accuracy across multiple datasets.

Crucially, the device operates with extreme energy efficiency, offering a promising route to sustainable AI. Co-author Iris Agresti highlighted the growing energy costs of modern machine learning and pointed to photonic quantum systems as a potential solution.

These early results could pave the way for new applications in areas where training data is limited and classical methods fall short—redefining the future of AI and quantum computing alike.

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OQC outlines bold 50,000 qubit quantum computing vision

Oxford Quantum Circuits (OQC) has revealed plans to develop a 50,000 qubit fault-tolerant quantum computer by 2034, using its proprietary ‘Dimon’ superconducting transmon technology.

Achieving such scale would require millions of physical qubits but promises to outperform global rivals, including Google and IBM, with real-world applications ranging from cyber threat detection to drug discovery.

The roadmap includes a significant push to reduce error rates and optimise chip materials, with recent breakthroughs enabling error detection at the hardware level. OQC claims it achieves a 99.8% gate fidelity in just 25 nanoseconds and a tenfold improvement in qubit efficiency compared to competitors.

Interim CEO Gerald Mullally said the roadmap marks a turning point, calling on finance and national security organisations to prepare for a quantum-driven future.

Now seeking $100 million in Series B funding, the firm plans to install its first quantum system in New York, later this year.

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EU launches global digital strategy

The European Union has launched a sweeping international digital strategy to bolster its global tech leadership and secure a human-centric digital transformation. With the digital and AI revolution reshaping economies and societies worldwide, the EU is positioning itself as a reliable partner in building resilient, open, and secure digital ecosystems.

The strategy prioritises collaboration with international partners to scale digital infrastructure, strengthen cybersecurity, and support emerging technologies like AI, quantum computing, and semiconductors while promoting democratic values and human rights in digital governance. The EU will deepen and expand its global network of Digital Partnerships and Dialogues to remain competitive and secure in a fast-changing geopolitical landscape.

These collaborations focus on research, industrial innovation, regulatory cooperation, and secure supply chains, while engaging countries across Africa, Latin America, Asia, and the EU’s own neighbourhood. The strategy also leverages trade instruments and investment frameworks such as the Global Gateway to support secure 5G and 6G networks, submarine cables, and digital public infrastructure, helping partner countries improve connectivity, resilience, and sustainability.

To enhance global digital governance, the EU is pushing for international standards that uphold privacy, security, and openness, and opposing efforts to fragment the internet. It supports inclusive multilateralism, working through institutions like the UN, G7, and OECD to shape rules for the digital age.

With initiatives ranging from AI safety cooperation and e-signature mutual recognition to safeguarding children online and combating disinformation, the EU aims to set the benchmark for ethical and secure digital transformation. At the heart of this vision is the EU Tech Business Offer—a modular, cross-border platform combining technology, capacity-building, and financing.

Through Team Europe and partnerships with industry, the EU seeks to bridge the digital divide, export trusted digital solutions, and foster an interconnected world aligned with European democratic principles. The strategy underscores that in today’s interconnected world, the EU’s prosperity and security hinge on shaping a digital future that is competitive, inclusive, and values-driven.

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Netherlands unveils open-architecture quantum computer

The Dutch quantum ecosystem has unveiled Tuna-5, a new open-architecture quantum computer developed as part of the HectoQubit/2 (HQ/2) project.

Unlike the vertically integrated machines offered by some commercial providers, Tuna-5 demonstrates a collaborative model that draws on interoperable hardware and software from across the Netherlands.

Built through a partnership between QuTech, TNO, and four Dutch startups — QuantWare, Qblox, Orange Quantum Systems, and Delft Circuits — Tuna-5 is now accessible via the Quantum Inspire public cloud platform.

The system integrates a superconducting quantum processor with tunable couplers, modular electronics, a user-friendly interface, and a Python-based SDK, all developed using components from the Delft quantum supply chain.

QuTech described the approach as more than simply combining parts from different vendors. It involved extensive testing and iterations to ensure a seamless system, which also helped strengthen the Netherlands’ capability to deliver scalable, interoperable quantum technology.

Hosted in QuTech’s DiCarlo lab and backed by Quantum Delta NL and the National Growth Fund, HQ/2 is designed to reinforce Dutch leadership in superconducting quantum computing.

Tuna-5 marks a step forward for academic and startup collaboration instead of relying solely on centralised industry giants.

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NVIDIA unveils world’s largest quantum research supercomputer

NVIDIA has launched the world’s largest research supercomputer dedicated to quantum computing, named ABCI-Q, housed at Japan’s new Global Research and Development Centre for Business by Quantum-AI Technology (G-QuAT).

Delivered in collaboration with Japan’s National Institute of Advanced Industrial Science and Technology (AIST), ABCI-Q combines over 2,000 NVIDIA H100 GPUs with multiple quantum processors to enable advanced quantum-AI workloads.

ABCI-Q integrates seamlessly with CUDA-Q, NVIDIA’s open-source hybrid computing platform, and supports superconducting, neutral atom, and photonic qubit technologies.

The platform is designed to tackle quantum computing challenges such as error correction and application development, potentially transforming industries like healthcare, finance and energy.

Leaders from NVIDIA and AIST believe the facility will serve as a testing ground for accelerating real-world quantum computing applications. The partnership aims to bridge the gap between experimental hardware and scalable, practical systems capable of solving complex global problems.

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Colt, Honeywell and Nokia to trial quantum cryptography in space

Colt Technology Services, Honeywell, and Nokia have joined forces to trial quantum key distribution (QKD) via satellites to develop quantum-safe networks. The trial builds on a previous Colt pilot focused on terrestrial quantum-secure networks.

The collaboration aims to tackle the looming cybersecurity risks of quantum computing, which threatens to break current encryption methods. The project seeks to deliver secure global communication beyond the current 100km terrestrial limit by trialling space-based and subsea QKD.

Low-Earth orbit satellites will explore QKD over ultra-long distances, including transatlantic spans. The initiative is designed to support sectors that handle sensitive data, such as finance, healthcare, and government, by offering encryption solutions resistant to quantum threats.

Leaders from all three companies emphasised the urgency of developing safeguards to protect against future threats. A joint white paper, The Journey to Quantum-Safe Networking, has been released to outline the risks and technical roadmap for this new frontier in secure communications.

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ABCI-Q goes live as Japan ramps up quantum tech investment

Japan has officially launched the world’s most powerful supercomputer dedicated to quantum computing research. Known as ABCI-Q, the system is housed within the newly opened G-QuAT research centre in Tsukuba, operated by the National Institute of Advanced Industrial Science and Technology (AIST).

G-QuAT (Global Research and Development Centre for Business by Quantum-AI Technology) opened earlier this month with a mission to advance hybrid computing technologies that combine classical computing, such as AI, with quantum systems.

Its work is structured around three main goals: developing use cases for hybrid computing, supporting the quantum technology supply chain, and enabling large-scale qubit integration.

ABCI-Q runs on 2,020 Nvidia H100 GPUs, connected using Nvidia’s Quantum-2 InfiniBand architecture, and integrated with CUDA-Q, Nvidia’s hybrid orchestration platform.

It supports multiple quantum processors, including superconducting qubits from Fujitsu, a neutral atom system by QuEra, and a photonic processor by OptQC—enabling diverse hybrid workloads across different qubit technologies.

The machine’s infrastructure includes 18 cryogenic systems supplied by Bluefors, built to support quantum computers with 1,000+ qubits and thousands of signal paths. G-QuAT has also partnered with IonQ to access its quantum systems via the cloud, bolstering research access and global collaboration.

The launch of ABCI-Q underscores Japan’s ambition to lead in next-generation computing. The government of Japan has committed over ¥330 billion (£1.7 billion) to quantum initiatives between 2020 and 2024.

AIST says the project aims to boost national industrial competitiveness, expand scientific capabilities, and foster a skilled quantum workforce.

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Quantum computers might break Bitcoin security faster than thought

Google researchers have revealed that breaking RSA encryption—the technology securing crypto wallets—requires far fewer quantum resources than previously thought. The team found cracking 2048-bit RSA could take under a week using fewer than a million noisy qubits, 20 times less than previously estimated.

Currently, quantum computers like IBM’s Condor and Google’s Sycamore operate with far fewer qubits, so crypto assets remain safe for now. The significance lies in the rapid pace of improvement in quantum computing capabilities, which calls for increased vigilance.

The breakthrough stems from improved algorithms that speed up key calculations and smarter error correction methods. Researchers also enhanced ‘magic state cultivation,’ a technique that boosts quantum operation efficiency by reducing resource waste.

Bitcoin relies on elliptic curve cryptography, similar in principle to RSA. If quantum computers can crack RSA sooner, Bitcoin’s security timeline could be shortened.

Efforts like Project 11’s quantum Bitcoin bounty highlight ongoing research to test the threat’s urgency.

Quantum threats extend beyond crypto, affecting global secure communications, banking, and digital signatures. Google has begun encrypting more traffic with quantum-resistant protocols in preparation for this shift.

Despite rapid progress, challenges remain. Quantum computers must maintain stability and coherence for long periods to execute complex operations. Currently, this remains a major hurdle, so there is no immediate threat.

It seems likely the first quantum-resistant blockchain upgrades will arrive well before any quantum attack on Bitcoin’s network.

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Quandela presents Belenos, a powerful 12-qubit quantum computer

French quantum computing startup Quandela has unveiled Belenos, a 12-qubit photonic quantum computer that it claims delivers 4,000 times more computing power than its predecessor.

The first integrated version is set to be delivered to EuroHPC/GENCI and operated at the CEA’s Très Grand Centre de Calcul (TGCC) before the end of 2025.

Currently, Belenos is accessible via the cloud to over 1,200 researchers across 30 countries in Europe, North America, and Asia.

Instead of relying solely on local deployments, this cloud availability enables researchers to explore hybrid HPC-quantum use cases in fields such as structural mechanics, meteorology, and materials science.

Quandela has ambitious plans to double the qubit count by 2026 with the launch of Canopus. Within three years, the company aims to develop a photonic quantum computer with more than 40 qubits, continuing its focus on systems that avoid cryogenic cooling by using photonics-based methods instead.

‘Our cloud-accessible Belenos system lets partners work on tasks where computing speed and operations per data point are crucial — areas where competitors fall short,’ said co-founder and CEO Niccolo Somaschi.

The platform is designed for practical applications in machine learning and at the AI-quantum interface, which Quandela views as strategically vital sectors for the future.

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New quantum method mimics molecular chemistry efficiently

Researchers have used a single atom to simulate how molecules react to light, marking a milestone in quantum chemistry.

The experiment, carried out by a team at the University of Sydney and published in the Journal of the American Chemical Society on 14 May, could accelerate the path to a quantum advantage, where quantum simulations outperform classical computing methods.

Instead of relying on multiple qubits, the team used a single ytterbium ion confined in a vacuum to mimic the complex interactions within organic molecules such as allene, butatriene and pyrazine.

The molecules react to photons through a series of electron and atomic movements, which are difficult to model using conventional computing when the number of vibrational modes increases.

The researchers encoded electronic excitations into the ion’s internal states and its motion along two directions in the trap, simulating molecular vibrations. By manipulating the ion with lasers, they emulated how the molecules behave after absorbing a photon.

The team then measured changes in the ion’s excited state over time to track the simulation’s progress. The method’s accuracy was validated by comparing results with known behaviours of the molecules.

While these specific molecules can still be simulated with traditional methods, the team believes their hardware-efficient approach could model more complex chemical systems using only a few dozen ions, rather than millions of qubits.

Experts, including quantum chemist Alán Aspuru-Guzik and Duke University’s Kenneth Brown, praised the work as a significant advance in quantum simulation.

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