Quantum computing papers, judged / Independent · source-traced
Most quantum announcements are noise. This is the signal.
One scientific paper at a time: what it shows, whom it concerns, and what is still missing before anyone can use it — in plain language, with the quotation it rests on. No physics degree required.
- EvidenceA verbatim quotation from the paper in every brief
- VerdictReal today · Milestone · Plausible by · Beyond current roadmaps
- Length600 to 800 words. No filler.
- PrerequisitesNone. Terms explain themselves where they appear.
Latest briefs
The newest papers judged, across all fields.
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Cheaper plan for simulating new materials
On paper, a new method for simulating materials needs far fewer operations than an earlier one. No machine can run it yet; nothing changes today.
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Quantum may need fourteen times fewer qubits
On paper, a new design needs fourteen times fewer qubits for reliable results. No hardware for it exists yet, so it is a plan.
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Quantum jobs five times faster, on paper
A design on paper makes code-breaking and chemistry runs five times as fast. No machine exists to run it, so nothing changes for buyers today.
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Materials simulation gets cheaper, on paper
A new error estimate cuts the work a future quantum computer needs for a model of electrons. It is a calculation on paper, so nothing changes…
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Fusion power design needs an unbuilt machine
A paper sizes a quantum calculation of how a fast particle slows in dense matter. No machine of that size exists.
Chemistry, drugs and materials
Simulating molecules and materials: what a quantum computer would need, and how far that is.
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Cheaper plan for simulating new materials
On paper, a new method for simulating materials needs far fewer operations than an earlier one. No machine can run it yet; nothing changes today.
-
Materials simulation gets cheaper, on paper
A new error estimate cuts the work a future quantum computer needs for a model of electrons. It is a calculation on paper, so nothing changes…
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Fusion power design needs an unbuilt machine
A paper sizes a quantum calculation of how a fast particle slows in dense matter. No machine of that size exists.
Optimization
Finance, logistics, scheduling: where a quantum method is claimed to help, and what the papers actually show.
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Quantum computers can’t price derivatives yet
Goldman Sachs authors cut the work 16-fold on paper, but pricing still needs 4.7 k logical qubits no machine has. Banks can’t use it today.
Quantum machine learning
Machine learning on quantum computers, and machine learning used to build them.
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Quantum ML: 26 of 29 top papers aren’t ready
We read 29 of the most-cited quantum machine learning papers. 26 show progress but state no measurable distance to a real business task.
Error correction and logical qubits
The machines themselves: error correction, logical qubits, and the results that later estimates are built on.
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Quantum may need fourteen times fewer qubits
On paper, a new design needs fourteen times fewer qubits for reliable results. No hardware for it exists yet, so it is a plan.
-
Quantum jobs five times faster, on paper
A design on paper makes code-breaking and chemistry runs five times as fast. No machine exists to run it, so nothing changes for buyers today.
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Quantum memory now outlasts its best parts
A protected quantum bit lasted longer than the best unprotected option on the same hardware. It is a memory only; no calculations were run on it.
Post-quantum cryptography
Attacks on today’s encryption and the methods meant to replace it.
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Lightweight cipher fails NIST’s quantum test
A paper calculation finds a small-device cipher falls short of NIST’s quantum security bar. It shows a design gap, not a break of any deployed system.
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Quantum attack on some encryption is far off
Breaking Chaskey or PRINCE needs 2⁶⁵ quantum operations, beyond every announced roadmap. Systems with long-term secrets should plan migration now.
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Cracking RSA with fewer qubits takes months
Factoring RSA-2048 would take 177 days on 13,436 qubits plus a memory not yet built. Migration deadlines do not depend on it.
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