Quantum

• On May 7, 2026, NEC Corporation unveiled its first quantum‑inspired AI accelerator chip, the “Q‑Neuron B1,” designed for edge‑computing devices such as industrial robots, drones, and smart‑city sensors. • The chip reportedly delivers a 3.2x improvement in inference latency over prior NEC ASICs while consuming 38% less power, enabling real‑time video analytics at up to 7680×4320 resolution on low‑bandwidth edge nodes. • NEC aims to ship the first commercial batches to Japanese manufacturers and municipal networks by Q3 2026, with plans to license the architecture to South Korean and Taiwanese partners.

• Scientists achieved the first teleportation of a photon's state between two separate quantum dots over a 270-meter open-air link. • The experiment used GPS synchronization, ultra-fast detectors, and turbulence stabilization, reaching 82% state fidelity exceeding classical limits by over 10 standard deviations. • Published in Nature Communications, this milestone advances quantum internet for ultra-secure communication and quantum relays.

• Cisco Systems unveiled its first universal quantum switch, positioning it as a foundational component for building a scalable quantum internet infrastructure. • The switch represents a significant advancement in quantum networking technology and has garnered industry recognition this week. • The development signals Cisco's strategic pivot toward quantum computing infrastructure as enterprises begin exploring quantum-enabled applications.

• MIT scientists unveiled a new quantum computing design achieving stable operation of 1,024 qubits simultaneously, surpassing previous records and demonstrating significant error correction capabilities reported on April 21. • The innovation uses a novel topological qubit design with error rates of 0.1% per operation, enabling computations previously impossible due to quantum decoherence, according to research published in Physical Review Letters. • The breakthrough could accelerate commercial quantum computing applications in drug discovery, materials science, and optimization problems within 2-3 years, researchers said.

• Cowbell Cyber Inc. launched Prime One, a new U.S. cyber insurance product for organizations with $250 million to $1 billion in annual revenue. • The policy provides up to $10 million in coverage limits and includes affirmative protection for AI-related incidents and quantum computing risks. • Prime One addresses unauthorized use or access to AI systems in business operations, targeting advanced digital risk profiles.

• Google unveiled a new quantum processor featuring 10,000 qubits on April 19, claiming achievement of quantum advantage for practical optimization problems with error rates reduced by 60% compared to previous generations. • The chip, named Willow, successfully solved complex combinatorial optimization problems approximately one million times faster than classical supercomputers according to Google Quantum AI division testing. • The breakthrough potentially accelerates commercialization of quantum computing for applications including drug discovery, financial modeling, and supply chain optimization, attracting increased competition from IBM and IonQ.

• NTT Research in Sunnyvale, California, launched Scale Academy on April 15, 2026, an incubator led by SVP Bennett Indart to commercialize lab technologies from NTT divisions. • The first product, SaltGrain, is a zero-trust data security suite using attribute-based encryption (ABE) developed by NTT's Cryptography lab director Dr. Amit Sahai and Dr. Brent Waters. • Scale Academy aims to accelerate breakthrough products for market, focusing on quantum-safe security amid rising threats.

• Brookhaven National Laboratory researchers created superconducting quantum interference devices (SQUIDs) using transition metal silicides, compatible with silicon manufacturing processes. • The technique adapts standard electronics methods, marking a milestone for scalable quantum systems on April 14, 2026. • This bridges gaps in quantum computing hardware by enabling integration with existing semiconductor fabs.

• At RSAC 2026 on April 3, experts detailed rising AI-powered autonomous cyber threats and agentic defenses. • Sessions emphasized quantum computing risks to encryption, urging enterprise preparedness. • Findings stress need for adaptive strategies against evolving AI attack vectors.

• Caltech scientists led by Manuel Endres unveiled a theoretical design for neutral-atom quantum computers that slashes required hardware by roughly 100 times, potentially making scalable machines feasible within years. • The breakthrough uses laser-trapped atoms movable across arrays, enabling long-distance connections unlike fixed-qubit systems; Endres noted, 'It’s actually very surprising how well this works,' calling it 'ultra-efficient error correction.' • Last year, the team assembled a record 6,100 atomic qubits, published in Nature, advancing beyond nearest-neighbor limitations in other platforms.

• Finnish quantum hardware company IQM secured a €50 million financing facility from BlackRock-managed funds to fuel R&D and U.S. market expansion. • The funding supports IQM's preparations for a potential US stock market listing, enhancing its position in quantum computing technology. • This investment underscores growing Wall Street interest in quantum breakthroughs amid competition in advanced computing sectors.

• The US-China technology rivalry is increasingly centered on quantum computing, with both nations treating the field as a strategic asset with profound economic and national security implications alongside AI and semiconductors. • China has deployed an estimated US$16 billion in public funding—roughly four times current US government investment—embedding quantum computing into its Five-Year Plan as one of seven frontier technologies through a highly centralized, state-led approach. • The US ecosystem remains decentralized, driven by over 40 companies, national laboratories, universities, and hyperscalers, with government support focused on funding, benchmarking, and validation rather than selecting national champions.

Banks, governments and tech providers urged to upgrade security because current systems will soon be obsolete Banks, governments and technology providers need to be prepared for quantum computer hackers capable of breaking most existing encryption systems by 2029, Google has warned.The tech company said in a blogpost that quantum computers would pose a “significant threat to current cryptographic standards” before the end of the decade and urged other companies to follow its lead. Continue reading...

Researchers say their prototype is a big step towards fully functioning batteries with rapid charging timesAustralian scientists have developed what they say is the world’s first proof-of-concept quantum battery.Quantum batteries, first proposed as a theoretical concept in 2013, use the principles of quantum mechanics to store energy, and have the potential to be more efficient than conventional batteries. Continue reading...

Liz Kendall announces £1bn funding to help design large-scale quantum computers for scientists, researchers, public sector and businessThe UK will not let quantum computing talent slip through its fingers and must learn lessons from US dominance of the AI race, the technology secretary has said, as the government announced a £1bn quantum funding pledge.Liz Kendall said the government hoped to retain homegrown quantum startups, engineers and researchers rather than lose them to competing countries, with the US stealing a march on its western rivals in AI. Continue reading...

• The U.S. Department of Defense designated Quantum and Battlefield Information Dominance (Q-BID) as one of six critical technology areas in November 2025, with the Quantum Applications Program receiving $59.5 million in the FY 2026 National Defense Authorization Act. • Quantum computing, sensing, and networking have advanced at the research level, but substantial gaps remain between laboratory demonstrations and industrial deployment, particularly in miniaturization, durability, and production cost reduction for quantum sensors. • The United States maintains classical computing leadership but faces gaps in quantum-supercomputer deployment compared to international competitors, with Europe and Japan reaching operational quantum-supercomputer deployment stages that U.S. initiatives have not yet achieved.

The errors that quantum computers make are holding the technology back. But recent progress in quantum error correction has excited many researchers

Superconducting computing circuits were briefly heralded as the future of computing in the 1980s. Columnist Karmela Padavic-Callaghan visits a quantum chip foundry where one company is betting this technology’s second act will revolutionise quantum computers

The books, TV, games and more that New Scientist staff have enjoyed this week

Cables underneath New York City are teeming with entangled quantum particles of light thanks to Qunnect, a company that has spent a decade working on building an unhackable quantum internet

Two popular quantum computing algorithms for problems in chemistry may have very limited use even as quantum hardware improves

A method for making quantum computers less error-prone could let them run complex programs such as simulations of materials more efficiently, thus making them more useful