QuantumNews Editorial Board
QuantumNews Editorial Board at QuantumNews
Published work
Top 10 Quantum Computing Companies in Japan
Japan is quietly building one of the world's most complete quantum ecosystems — spanning superconducting processors, cold neutral-atom hardware, cryogenic materials, quantum software, and pharma-grade quantum chemistry. According to QuantumNews' Japan country page, the ecosystem now counts 52 companies, 8 university research clusters, and 1 national research institution, concentrated heavily around Tokyo (35 companies), with smaller hubs in Osaka, Wako, Yokohama, Chigasaki, Kyoto, Hamamatsu, and Tsukuba. Here's a deep dive into the Top 10 Japanese quantum computing companies, ranked by their QuantumNews Quantum Score — a composite measure of hardware scale, gate fidelity/error-correction maturity, funding raised & investor quality, and commercial momentum & partnerships.
Read storySilicon-Spin Quantum Computers Move Closer to Integrated Chips
Researchers have integrated silicon spin qubits, cryogenic CMOS control and superconducting interconnects into a working quantum processing unit. The advance addresses one of the biggest barriers to scaling silicon quantum computers: controlling large numbers of qubits without overwhelming cryogenic systems with wiring.
Harvest Now, Decrypt Later: Why the Quantum Cybersecurity Threat Has Already Begun
A cryptographically powerful quantum computer does not yet exist, but sensitive encrypted information may already be under threat. The “harvest now, decrypt later” strategy allows adversaries to collect protected data today and wait for future quantum systems to break the encryption, making post-quantum migration an immediate cybersecurity priority.
US National Quantum Update: July 2026
The United States advanced its quantum strategy in July through defence-backed benchmarking, fault-tolerance research, domestic manufacturing and post-quantum security, as federal policy and company activity moved closer together.
Freezing Swampland: How Krylov Complexity Reframes the Weak Gravity Conjecture
A new holographic study links the Weak Gravity Conjecture to the freezing and unfreezing of Krylov spread complexity in charged black-hole duals, offering a quantum-information perspective on a core swampland criterion.
Quantum Computing Weekly: From Bigger Machines to Practical Quantum Value
Quantum computing is moving beyond the race for bigger processors. This week’s developments across neutral atoms, photonics, quantum software, industrial optimisation, cryogenic infrastructure and workforce development show an industry increasingly focused on practical value, system integration and real-world deployment.
Unlocking India's Quantum Future: From Better Medicines to Smarter Infrastructure
Quantum computing is often described as the next technological revolution. But where can it realistically create value for India? From healthcare and clean energy to logistics and cybersecurity, the country's biggest opportunities may lie in solving real national challenges rather than chasing technological hype.
Quantum Computing’s Next Breakthrough Isn’t Just Hardware, It’s Purpose
As quantum hardware advances, the industry’s next challenge is identifying applications where quantum systems can deliver sustained scientific, strategic and economic value.
