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Quantum Computing Breakthroughs

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Weekly progress from IBM, Google Quantum AI, Quantinuum, IonQ, PsiQuantum, with academic papers and commercial milestones

Quantum Computing Breakthroughs05/29/2026, 11:31:22 PM

Quantum Weekly: May 22–29, 2026

May 26 was the quantum industry's most consequential public-markets day yet — Quantinuum set IPO terms at $12.7B while Terra Quantum, IQM, and Pasqal simultaneously advanced SPAC filings, set to triple the number of listed quantum-pure-plays. On the research side: fluxonium gates exceed 99.99% fidelity via unified flux control, silicon spin qubits cut magic-state distillation overhead by 42%, and Weizmann confirms trapped-ion multi-qubit gates are compatible with scalable QEC. PsiQuantum opens its Brisbane lab and open-sources Construct. D-Wave defends its supremacy claim against Flatiron's BP-TNS challenge.

Quantum Computing Breakthroughs05/23/2026, 12:26:18 AM

Quantum Weekly: May 18–22, 2026

The $2.013B U.S. CHIPS Act quantum portfolio — spanning 9 companies and all 5 major qubit modalities, anchored by IBM's $1B Anderon foundry spin-out — defines the week. On the research side, IBM's Galois-qudit concatenation reaches the teraquop regime in the gross code, while Osaka's zero-level CCZ distillation cuts magic-state overhead by 5–10× using just 22 physical qubits. Four compiler papers advance distributed QC scheduling and fidelity-aware transpilation. Quantum Motion raises the UK's largest quantum VC round ($160M), and European executives respond to the U.S. commitment with a call for a "quantum Airbus."

Quantum Computing Breakthroughs05/17/2026, 10:59:35 PM

Quantum Weekly: May 10–17, 2026

Eight new papers, $800M+ in ecosystem funding, and three company milestones define the week — from the first Z₃ superconducting time crystal to a 59.7× FTQC compiler speedup.

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