Quantum Computing
Quantum computing hardware, modalities, architectures, companies, roadmaps, ecosystem dynamics, and the path to fault tolerance.
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Quantum Computing
Three Bets on Silicon: Donor Qubits, Quantum Dots, and the Foundry Path Compared
When people say "silicon quantum computing," they often speak as if it is one thing. It is not. It is at least three distinct approaches, built on the same material but employing different physics, different fabrication methods, and different strategies…
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Quantum Computing
China’s Quantum OS Play: Origin Pilot and the Battle for the Integration Layer
China's Origin Pilot isn't just another quantum SDK — it's a top-down systems integration layer that challenges the West's bottom-up approach to quantum open architecture.
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Quantum Computing
Quantum Low-Density Parity-Check (qLDPC) Codes
Quantum Low-Density Parity-Check (qLDPC) codes are an emerging class of quantum error-correcting codes that promise to significantly reduce the overhead required for fault-tolerant quantum computing. Much like their classical LDPC counterparts, qLDPC codes are defined by sparse parity-check constraints: each…
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Quantum Systems Integration
Engineering the Quantum Operating System (OS) Stack: From Nanosecond Pulse Control to System-Level Orchestration
The argument for quantum computing's "PC moment" has become surprisingly compelling. QuantWare ships superconducting QPUs to customers in 22 countries. Qblox sells modular control stacks to over 100 labs. Bluefors has installed 1,800 cryogenic systems worldwide. The Quantum Open Architecture…
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Quantum Systems Integration
Quantum Open Architecture (QOA) & Quantum Systems Integration: From Monoliths to Modular Quantum Computing
Today's quantum computers are monoliths — a single vendor designs the chip, builds the control electronics, writes the software, and operates the cloud platform. The customer gets a black box. This is exactly where classical computing was in the 1960s,…
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Quantum Computing
Quantum Open Architecture (QOA): The “PC Moment” of Quantum Computing
Today, a sea change is underway. Quantum Open Architecture (QOA) is doing for quantum computing what the PC revolution did for classical computing - opening up the ecosystem. Just as the computing world shifted from monolithic mainframes to modular PCs…
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Quantum Computing
Silicon’s Hidden Advantage: How Biased Noise Could Slash the Cost of Quantum Error Correction
When people say "silicon quantum computing," they often speak as if it is one thing. It is not. It is at least three distinct approaches, built on the same material but employing different physics, different fabrication methods, and different strategies…
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Quantum Ecosystem
What It Takes to Build a Quantum Computer: Mapping the Hidden Supply Chains Behind Every Modality
A map of the hidden supply chains behind every major quantum computing modality — and a guide to where value, risk, and strategic leverage actually sit. The headlines go to the companies designing quantum processors, but behind every qubit sits…
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Quantum Ecosystem
The Foundry’s Hidden Supply Chain: Who Really Wins If Silicon Spin Quantum Computing Wins
In September 2025, a team from the Australian startup Diraq and Belgium's imec published a result in Nature that no one in the semiconductor industry could ignore. They had fabricated silicon quantum dot spin qubits on imec's industrial 300-millimeter wafer…
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Quantum Policies
How the EU Can Capture the Benefits of Quantum Computing
The European Union has entered the global quantum race with determination - aiming not just to excel in research, but to translate breakthroughs into economic and strategic benefits. In July 2025, the European Commission unveiled the Quantum Europe Strategy, a…
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Quantum Ecosystem
The Infrastructure Beneath the Qubit: Four Enabling Technologies That Will Determine Which Quantum Computers Actually Scale
Quantum computing captivates with its physics: superposition, entanglement, interference. The companies that build qubits get the headlines, the funding rounds, and the breathless media coverage. But the companies that build the infrastructure beneath the qubits - the electronics that control…
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Quantum Ecosystem
The Tweezer Array’s Hidden Supply Chain: Who Really Wins If Neutral-Atom Quantum Computing Wins
In 2025, a team at Harvard, MIT, and QuEra did something that no quantum computing platform had done before: they ran a 3,000-qubit atom array continuously for over two hours, replenishing lost atoms mid-computation - effectively building the first quantum…
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Quantum Computing
Experimental Quantum Error Correction Below Threshold
When Harvard’s neutral-atom team quietly dropped their new paper on a fault-tolerant architecture for universal quantum computation, a few days ago, it felt like the field had crossed an invisible line. For years we’ve had impressive pieces of the puzzle…
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Quantum Computing
A Quantum Contrarian Con Artist
In the growing spotlight on quantum technology, a new kind of opportunist is taking the stage - the contrarian con artist. These are not the honest skeptics who ask hard questions in good faith. They are bad-faith actors cloaking themselves…
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Quantum Commercialization
Quantum Computing Due-Diligence: A Field Guide to Evaluating Startups, Technologies, and Claims
Over the years, I’ve developed a personal toolkit - a field guide - for evaluating quantum startups and their claims. The goal is to neither be swept up by the mystique nor dismiss genuine progress. This balance is crucial: the…
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