Quantum computing

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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Quantum computing partnership launches in Doha

Quantinuum and Al Rabban Capital have announced a new venture aimed at advancing quantum computing in Qatar and the region.

The partnership seeks to provide access to Quantinuum’s technologies, co-develop relevant quantum applications and train a new generation of developers.

This move aligns with Qatar’s ambition to become a hub for advanced technologies. Applications will focus on energy, medicine, genomics, and finance, with additional potential in emerging fields like Generative Quantum AI.

The venture builds on existing collaborations with Hamad Bin Khalifa University and the Qatar Center for Quantum Computing. Quantinuum’s expansion into Qatar follows growth across the US, UK, Europe, and Indo-Pacific.

Leaders from both organisations see this as a strategic milestone, strengthening technological ties between Qatar and the West. The joint venture not only supports national goals but also reflects rising global demand for quantum technologies.

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Microsoft adds quantum-resistant encryption to Windows 11

Microsoft is rolling out quantum-resistant encryption algorithms in Windows 11 as part of its effort to prepare for the eventual arrival of quantum computers. The new cryptographic tools were announced at the BUILD 2025 conference and are now available in Insider Preview Build 27852 and higher.

These updates introduce post-quantum algorithms—ML-KEM and ML-DSA—into SymCrypt, Windows’ core cryptographic library.

The algorithms, formerly known as CRYSTALS-Kyber and CRYSTALS-Dilithium, were selected by the US National Institute of Standards and Technology (NIST) and are part of the agency’s recommended post-quantum cryptography (PQC) standards.

The algorithms have also been added to SymCrypt-OpenSSL, Microsoft’s open-source extension for integrating SymCrypt with OpenSSL. Developers can now access the algorithms via Microsoft’s Cryptography API: Next Generation (CNG), enabling early testing and migration.

Quantum computers, which are still in experimental stages, promise to outperform classical systems in solving problems like factoring large numbers—a cornerstone of traditional encryption methods like RSA and elliptic curve cryptography.

Experts warn that these legacy systems could be broken in the coming decades, potentially compromising the security of global communications, financial systems, and data infrastructure.

The new PQC algorithms are designed to resist quantum attacks, but they bring additional complexity. Their encryption keys are significantly larger than those used in current standards.

For now, NIST recommends using them alongside RSA or elliptic curve keys in hybrid configurations, to mitigate risks from undiscovered vulnerabilities.

The transition to quantum-safe encryption is expected to be one of the most complex in cybersecurity history. Developers will need to address compatibility issues, including ensuring software can handle longer key lengths without introducing system-breaking errors.

Microsoft’s early adoption is a step toward broader post-quantum readiness. Experts emphasize the importance of rigorous testing now, as the timeline for quantum threats remains uncertain.

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Google’s quantum chip hints at multiverse

Google’s new quantum computer chip, Willow, has performed a computation in under five minutes that would take traditional supercomputers ten septillion years. Experts now believe this feat could support the multiverse theory, as Willow might be tapping into parallel universes to process information.

Willow also significantly reduces error rates, a major breakthrough in the field of quantum computing. The chip’s unprecedented speed and accuracy could pave the way for hybrid AI systems that combine quantum and classical computing.

Physicists like Hartmut Neven and David Deutsch suggest quantum mechanics implies multiple realities, reinforcing theories once considered speculative. If accessible and scalable, Willow could usher in an era of AI powered by multiverse-level processing.

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BlackRock flags quantum computing risk in Bitcoin ETF filing

BlackRock has highlighted quantum computing as a potential risk to Bitcoin’s long-term security in its recent Bitcoin ETF filing. The inclusion marks a rare mention of quantum risk in mainstream finance.

Bitcoin has been trading strongly, recently surpassing $105,000 before a slight pullback to around $103,000.

Quantum computing could theoretically break the cryptography that protects Bitcoin wallets, but experts stress this threat remains decades away. Bitcoin developers have been preparing for quantum resistance with upgrades like Taproot, and emerging cryptographic alternatives are already under testing.

The risk disclosure by BlackRock mainly follows SEC filing requirements rather than signalling imminent danger.

Bitcoin’s price momentum remains robust after breaking key resistance levels near $97,700. However, technical indicators like the RSI suggest the asset is approaching overbought conditions, which might lead to a short-term correction.

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BlackRock raises concerns over quantum computing risks to Bitcoin ETFs

BlackRock has flagged quantum computing as a potential risk to its iShares Bitcoin ETF (IBIT) in a recent regulatory filing. BlackRock highlighted the threat from emerging technologies, specifically quantum computing, to the cryptographic security of Bitcoin and blockchain networks.

BlackRock warned that advances in quantum computing could undermine the cryptographic algorithms protecting digital assets like Bitcoin. It is the first time BlackRock has explicitly mentioned this risk in relation to the IBIT ETF, with $64 billion in net assets.

Despite the warnings, analysts suggest that such risk disclosures are standard practice for financial products. James Seyffart, an analyst at Bloomberg Intelligence, noted that firms are required to flag all possible risks, even those with a very low likelihood of occurring.

Meanwhile, Bitcoin ETFs have seen a surge in popularity, attracting over $41 billion in net inflows since their launch.

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