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Industry
Japan Launches First Homegrown Quantum Computer, Marking a Quantum Sovereignty Milestone
Japan has officially switched on its first quantum computer built entirely with homegrown technology. The new superconducting system went live on July 28, 2025 at Osaka University’s Center for Quantum Information and Quantum Biology (QIQB) - a landmark achievement that…
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Leadership
Why Companies May Need a Chief Quantum Officer (CQO)
In my opinion, forward-thinking organizations should consider creating a Chief Quantum Officer (CQO) role. Much like those historical electricity executives, a CQO would spearhead the adoption of a disruptive technology that is revolutionary, promising - but widely misunderstood. It’s a…
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Post-Quantum, PQC, Quantum Security
Device-Independent QKD (DI-QKD)
Modern quantum key distribution (QKD) has always carried a slightly uncomfortable subtext: the math may be information-theoretic, but the box on the rack is engineered. And engineered systems fail in messy, non-theoretical ways. That gap - between "provably secure on…
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Quantum Computing
Magic States: A Key to Universal Fault-Tolerant Quantum Computing
Magic states are special quantum states that enable the universal operations needed for any quantum algorithm, yet which are not themselves easy to produce or protect. In essence, magic states supply the "extra quantum sauce" that elevates a protected quantum…
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Industry
Jiuzhang 4.0: 3,050 Photons, 25.6 Microseconds, and a Direct Answer to the Algorithm That Threatened Photonic Quantum Advantage
15 Aug 2025 - A research team led by Pan Jianwei and Lu Chao-Yang at the University of Science and Technology of China (USTC), in collaboration with Tsinghua University and Jiuzhang Quantum Technology Co. Ltd., has demonstrated the largest photonic…
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Quantum Sovereignty
The Border Around Quantum: Export Controls, Deemed Exports, and “Research as a Controlled Flow”
Export controls have emerged as a main lever to throttle or channel the flow of quantum know-how and equipment, effectively drawing new borders through the global R&D ecosystem. Quantum sovereignty, in other words, isn’t just about spending more on R&D;…
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Post-Quantum, PQC, Quantum Security
Marin’s Law on Crypto-Agility: Adaptability Determines Survivability
Thesis: Migration time to safer cryptography is inversely proportional to an organization’s crypto-agility. Formally: Let A denote an organization’s crypto-agility (0 ≤ A ≤ 1) and Y the wall-clock time required to replace a cryptographic primitive across all in-scope systems.…
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Post-Quantum, PQC, Quantum Security
Why “They’ve Only Factored 15” Is the Wrong Way to Judge Quantum Computing
Early Shor demos were proofs of control, not the real scoreboard. The path to a cryptographically relevant quantum computer runs through error correction, logical qubits, and fault tolerance - not through a neat sequence of ever-larger classroom factorizations. One of…
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Research
Alice & Bob’s New “Unfolded” Code Dramatically Lowers Magic State Overhead
A new research paper from quantum startup Alice & Bob in collaboration with Inria unveils a technique to significantly reduce the cost of magic state generation - a crucial resource for universal fault-tolerant quantum computing. The paper, titled “Unfolded distillation:…
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Q-Day
How You, Too, Can Predict Q-Day (Without the Hype)
For three decades, Q-Day has been “just a few years away.” I want to show you how to make your own informed prediction on when Q-Day will arrive. Counting physical qubits by itself is misleading. To break RSA you need…
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Post-Quantum, PQC, Quantum Security
CRQC Readiness Benchmark vs. Quantum Threat Tracker (QTT)
I will try and compare my proposed CRQC Readiness Benchmark with QTT, highlighting fundamental differences in methodology, assumptions, and philosophy, all in an effort to clarify how each approach informs our understanding of the looming “Q-Day.” The goal is to…
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Q-Day
The Trouble with Quantum Computing and Q-Day Predictions
The trouble with quantum computing predictions so far has been that too many have been more speculation than science, more influenced by bias than by balanced analysis. We have the tools and knowledge to do better. By embracing a data-driven,…
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Q-Day
Quantum Threat Tracker (QTT) Review Praising the Tool Questioning the Demo
The Quantum Threat Tracker (QTT) is a newly released open-source tool by Cambridge Consultants and the University of Edinburgh that aims to forecast when quantum computers will break today’s encryption. It combines quantum resource estimation (using optimized variants of Shor’s…
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Industry
IBM Launches Heron R3 (ibm_pittsburgh): ~350 µS T2 and a Quality Upgrade for Its 156‑Qubit Platform
IBM has rolled out Heron r3, a new revision of its Heron processor family, debuting on the IBM Quantum Platform as ibm_pittsburgh in late July 2025. The headline change is quality, not scale: r3 keeps the 156‑qubit heavy‑hex design introduced with Heron r2, but IBM says targeted…
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Post-Quantum, PQC, Quantum Security
Quantum Tech and Espionage: What Every Researcher Must Know
To the untrained eye, espionage against scientists can be nearly invisible - it blends into everyday academic or business activity. But certain red flags and tactics surface again and again. Below is a consolidated list of common espionage methods (many…
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