Who Wins If Silicon Spin Wins
Silicon spin qubits borrow most of their supply chain from the semiconductor industry. We work through who supplies each layer, where the chokepoints are,…
Four Technologies That Decide Which Modality Scales
Qubit counts get the headlines. Control electronics, cryogenics, error correction hardware, and critical materials decide which architectures actually scale. A four-layer diagnostic.
Who Wins If Neutral Atoms Win: Mapping a Modality’s Supply Chain
Neutral-atom machines have no cryostat and no fabricated qubit chip. Almost everything hard about them is optical. A worked map of the bottlenecks, and…
Evaluating a Quantum Company: The Technology
Qubit count is the easiest number to quote and the least informative. A working guide to the metrics, modalities, and manufacturing questions behind a…
How to Tell a Quantum Chokepoint From an Inconvenience
Scarcity is the wrong first question. Five tests separate a dependency that stops your quantum program from one that only costs money and time,…
Who Really Wins If Photonics Wins
The photonic bet is a manufacturing bet. Which means the winners, if it pays off, are decided layer by layer, and most of them…
Who Really Wins If Trapped Ions Win
Trapped-ion quantum computing has no single chokepoint like the dilution refrigerator. It has a contested one, and most of it sits in Europe while…
Who Wins If Superconducting Wins
A refrigerator company just signed a decade-long contract for helium mined on the Moon. Here is what the superconducting supply chain looks like layer…
The Three Budgets Behind Every Quantum Control System
Quantum control systems are usually described by their parts. Engineers get further by describing them by their budgets: timing, noise, and wiring.
NISQ, FTQC, FASQ: How to Read the Three Eras of Quantum Computing
One vendor announces 1,121 qubits. Another announces 48 logical qubits on 280 atoms. Three acronyms explain why those numbers cannot be compared, and what…