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Latest Community Posts

PostQuantum.com PostMay 2, 2026

IBM’s Quantum Advantage Claim: What the Heron-Fugaku Experiment Actually Shows

IBM says quantum advantage arrives in 2026. A new Heron-Fugaku experiment provides the evidence. Whether it proves the claim depends on how you define “advantage.” The post IBM’s Quantum Advantage...
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PostQuantum.com PostApril 30, 2026

Scott Aaronson Sounds the Alarm: “This Post Is Your Warning”

The inventor of BosonSampling and new NAS member says reputable QC hardware experts now tell him a cryptanalytic quantum computer should be possible by around 2029. The post Scott Aaronson Sounds ...
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PostQuantum.com PostApril 23, 2026

Quantum Computing by 2033: Which Industries Win, Which Wait, and Why

By 2033, fault-tolerant quantum computers with 2,000 logical qubits will create genuine competitive separation in pharma, chemicals, battery technology, and advanced materials. Finance, logistics, ...
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PostQuantum.com PostApril 23, 2026

The Narrow Advantage: Why Quantum Computing Will Transform Five Industries and Disappoint Twenty

After weeks of research and hundreds of papers, the picture is clear: quantum computing will deliver genuine competitive advantages for pharma, chemicals, batteries, advanced materials, and condens...
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PostQuantum.com PostApril 23, 2026

The Error Correction Revolution: Why qLDPC Codes, Magic State Cultivation, and Algorithmic Fault Tolerance Are Rewriting the Quantum Timeline

Between 2024 and 2026, three error correction advances reduced the physical qubit cost of fault-tolerant quantum computing by an order of magnitude or more. qLDPC codes compress the encoding ratio....
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PostQuantum.com PostApril 23, 2026

Quantum Chemistry’s Honest Ledger: What the Resource Estimates Actually Say About Drug Discovery, Catalysis, and Materials Design

Quantum computing will provide genuine advantage for a specific class of chemistry problems involving strongly correlated electronic states. The applications are real, the resource estimates are co...
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PostQuantum.com PostApril 23, 2026

Why Quantum Won’t Save Wall Street (Yet): An Honest Assessment of Quantum Computing in Finance

The best quantum finance resource estimates, produced by Goldman Sachs' own research team, require logical clock speeds three orders of magnitude beyond any projected hardware. The quantum speedup ...
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PostQuantum.com PostApril 23, 2026

Quantum Sovereignty and the Utility Trap

The industries where quantum computing creates the most value are the industries most critical to national security. The hardware serving them is concentrated in a handful of companies and countrie...
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PostQuantum.com PostApril 23, 2026

IonQ Publishes Complete Fault-Tolerant Blueprint for Trapped Ions — The Walking Cat Architecture

IonQ's 110-page preprint details a complete fault-tolerant quantum computer architecture built entirely on qLDPC codes. The numbers are impressive, but every claim rests on hardware that doesn't ye...
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PostQuantum.com PostApril 23, 2026

The Quantum Utility Ladder: What Fault-Tolerant Quantum Computers Will Actually Be Used For

Most quantum computing coverage fixates on breaking encryption. The real near-term story is utility — chemistry, materials, energy, drug design. This article maps every major fault-tolerant quantum...
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