All Quantum Computing Posts
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Quantum Computing
The Easiest Job in Quantum Computing – Being a Cynic
Don’t mistake the noise of cynicism for the signal of intelligence. If someone validates themselves as a useless cynic - unwilling to provide anything beyond scoffs and derision - don’t waste your energy getting dragged into their performative pessimism. Instead, direct your attention to the genuine skeptics and curious contrarians who challenge ideas in good faith. Engage with those asking hard questions and with the enthusiasts…
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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 provocative idea (even “a job title from Star Trek,” as one commentator quipped ), but it’s quickly moving from speculation to reality. A few bold…
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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 computer from what could be emulated on a classical computer to a machine that can outperform classical supercomputers. Recent breakthroughs - from theory and small-scale…
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Quantum Computing
The Nervous System of Quantum Computing: A Deep Dive into Quantum Control Systems
In July 2025, Keysight Technologies shipped a piece of equipment to a research institute in Tsukuba, Japan, that most people outside the quantum industry had never heard of - yet without it, the 1,000-qubit quantum computer it was destined for would have been little more than an extraordinarily expensive refrigerator. The device was a quantum control system: a dense rack of electronics designed to translate…
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Post-Quantum, PQC, Quantum Security
What It Will Actually Cost to Break RSA-2048: Energy, Hardware, People, and the Bill Nobody’s Talking About
Breaking one RSA-2048 key on a CRQC could cost $2–5 million when you add up energy, amortization, personnel, and facilities All three approaches share silicon's core advantages: compatibility with semiconductor industry infrastructure, small qubit footprint (~50 nm), and long coherence times enabled by isotopic purification of ²⁸Si. But they diverge sharply on how qubits are defined, controlled, and manufactured. Approach 1: Atomically Precise Donor Qubits…
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Quantum Computing
Quantum Winter Warning: Why Overhype and the QCI Saga Could Chill Quantum Computing
The saga of Quantum Computing Inc. is a stark illustration of what happens when hype becomes unmoored from truth. If the quantum field falls into the trap of overselling and under-delivering, we will hand ammunition to detractors and possibly induce the very “quantum winter” we all want to avoid. Investors and enthusiasts should indeed be excited by progress, but also clear-eyed: practical quantum computing is…
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Quantum Computing
The Many Faces of Decoherence
Quantum computers hold enormous promise, but they face a stubborn adversary: decoherence. This is the process by which a qubit’s fragile quantum state (its superposition or entanglement) leaks into the environment and effectively "forgets" the information it was carrying. For today’s leading quantum hardware modalities – superconducting circuits, trapped-ion qubits, neutral atoms in optical traps, photonic qubits, and semiconductor spin qubits in silicon – decoherence…
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Quantum Computing
What Quantum Computers Can Do Better Than Classical Computers
Quantum computers already outperform classical computers on a few specialized tasks, and over the coming years that list of tasks will grow. They excel at problems where superposition and entanglement let them explore a vast landscape of possibilities in parallel and use interference to extract an answer – factoring numbers, searching databases, simulating quantum systems, solving certain optimization problems, and more we have yet to…
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