{"event":"quantum-computing-tracker","title":"Quantum computing frontier tracker","state":"developing","updated":"2026-10-10T00:00:00.000Z","entries":[{"id":"xgpcrr","at":"2026-10-07T00:00:00.000Z","title":"DARPA moves Atom Computing, Diraq, IBM and IonQ to QBI Stage C","status":"confirmed","cites":[{"id":"quantum-computing-qbi-stage-c","n":2,"url":"https://www.darpa.mil/news/2026/four-more-teams-enter-quantum-benchmarking-initiative-final-stage","publisher":"DARPA","short":"DARPA"}]},{"id":"1kissxs","at":"2026-09-24T00:00:00.000Z","title":"Infleqtion reports 30 entangled logical qubits on neutral atoms","status":"reported","cites":[{"id":"quantum-computing-infleqtion-30","n":6,"url":"https://infleqtion.com/infleqtion-achieves-30-entangled-logical-qubits-on-its-sqale-quantum-computer/","publisher":"Infleqtion","short":"Infleqtion"}]},{"id":"15qbcha","at":"2026-08-13T00:00:00.000Z","title":"Preprint reproduces IBM-Chicago experiment on 256 GPUs","status":"reported","cites":[{"id":"quantum-computing-doped-clifford-sim","n":4,"url":"https://arxiv.org/abs/2608.13110","publisher":"arXiv","short":"arXiv"}]},{"id":"13j3dz9","at":"2026-07-30T00:00:00.000Z","title":"IBM and partners claim quantum advantage","status":"disputed","cites":[{"id":"quantum-computing-ibm-algorithmiq-claim","n":45,"url":"https://newsroom.ibm.com/2026-07-30-ibm-and-algorithmiq-demonstrate-quantum-advantage,-establishing-a-framework-for-trusted-quantum-computation-beyond-classical-verification","publisher":"IBM Newsroom","short":"IBM Newsroom"},{"id":"quantum-computing-ibm-uchicago-claim","n":46,"url":"https://newsroom.ibm.com/2026-07-30-ibm-and-the-university-of-chicago-demonstrate-quantum-advantage,-establishing-trusted-quantum-computation-on-logical-circuits","publisher":"IBM Newsroom","short":"IBM Newsroom"}]},{"id":"yfr32a","at":"2026-07-22T00:00:00.000Z","title":"Google reports reinforcement-learning control of error correction","status":"confirmed","body":"An agent retuned thousands of control parameters during computation, improving logical stability 3.5-fold on Willow.","cites":[{"id":"quantum-computing-google-rl-qec","n":43,"url":"https://research.google/blog/towards-a-quantum-computer-that-learns-from-its-errors/","publisher":"Google Research","short":"Google Research"},{"id":"quantum-computing-rl-qec-drift","n":44,"url":"https://research.google/blog/towards-a-quantum-computer-that-learns-from-its-errors/","publisher":"Google Research","short":"Google Research"}]},{"id":"1ea3acc","at":"2026-06-24T00:00:00.000Z","title":"Nature publishes critique of Microsoft's Majorana claims","status":"disputed","cites":[{"id":"quantum-computing-majorana-critique-2026","n":12,"url":"https://news.st-andrews.ac.uk/archive/critique-published-by-nature-challenges-microsofts-quantum-computing-claims/","publisher":"University of St Andrews","short":"University of St Andrews"}]},{"id":"usv593","at":"2026-05-31T00:00:00.000Z","title":"Quandela joins DARPA QBI Stage A (May 2026)","status":"confirmed","body":"DARPA gives the month (May 2026) but not the day; QBI had evaluated more than 20 companies by October 2026.","cites":[{"id":"quantum-computing-qbi-20-companies","n":42,"url":"https://www.darpa.mil/news/2026/four-more-teams-enter-quantum-benchmarking-initiative-final-stage","publisher":"DARPA","short":"DARPA"}]},{"id":"geyicl","at":"2026-03-31T00:00:00.000Z","title":"Google estimate for breaking elliptic-curve crypto falls below 1,200 logical qubits","status":"confirmed","cites":[{"id":"quantum-computing-google-ecc-estimate","n":15,"url":"https://research.google/blog/safeguarding-cryptocurrency-by-disclosing-quantum-vulnerabilities-responsibly/","publisher":"Google Research","short":"Google Research"},{"id":"quantum-computing-google-ecc-zk","n":41,"url":"https://research.google/blog/safeguarding-cryptocurrency-by-disclosing-quantum-vulnerabilities-responsibly/","publisher":"Google Research","short":"Google Research"}]},{"id":"1qk5o6b","at":"2026-03-04T00:00:00.000Z","title":"Quantinuum reports 48 error-corrected logical qubits","status":"confirmed","body":"Preprint posted 25 February and company blog 4 March; up to 94 error-detected logical qubits from 98 physical qubits, with some benchmarks only partially fault-tolerant (company-reported).","cites":[{"id":"quantum-computing-quantinuum-logical-2026","n":3,"url":"https://thequantuminsider.com/2026/03/10/quantinuum-researchers-demonstrates-quantum-computations-with-dozens-of-protected-logical-qubits/","publisher":"The Quantum Insider","short":"The Quantum Insider"},{"id":"quantum-computing-quantinuum-ft-pft","n":39,"url":"https://arxiv.org/abs/2602.22211","publisher":"arXiv (Quantinuum researchers)","short":"arXiv"},{"id":"quantum-computing-quantinuum-logical-caveat","n":40,"url":"https://thequantuminsider.com/2026/03/10/quantinuum-researchers-demonstrates-quantum-computations-with-dozens-of-protected-logical-qubits/","publisher":"The Quantum Insider","short":"The Quantum Insider"}]},{"id":"9vefl6","at":"2026-01-13T00:00:00.000Z","title":"Google demonstrates dynamic surface code circuits on Willow","status":"confirmed","body":"Hexagonal, walking and iSWAP circuits; a three-coupler hexagonal layout matched the static code's error suppression.","cites":[{"id":"quantum-computing-dynamic-surface-codes","n":37,"url":"https://research.google/blog/dynamic-surface-codes-open-new-avenues-for-quantum-error-correction/","publisher":"Google Research","short":"Google Research"},{"id":"quantum-computing-dynamic-three-circuits","n":38,"url":"https://research.google/blog/dynamic-surface-codes-open-new-avenues-for-quantum-error-correction/","publisher":"Google Research","short":"Google Research"}]},{"id":"fchyd5","at":"2025-11-12T00:00:00.000Z","title":"IBM unveils Nighthawk and Loon; Harvard-MIT-QuEra 448-atom result","status":"confirmed","cites":[{"id":"quantum-computing-ibm-nighthawk","n":35,"url":"https://newsroom.ibm.com/2025-11-12-ibm-delivers-new-quantum-processors,-software,-and-algorithm-breakthroughs-on-path-to-advantage-and-fault-tolerance","publisher":"IBM Newsroom","short":"IBM Newsroom"},{"id":"quantum-computing-ibm-loon","n":36,"url":"https://newsroom.ibm.com/2025-11-12-ibm-delivers-new-quantum-processors,-software,-and-algorithm-breakthroughs-on-path-to-advantage-and-fault-tolerance","publisher":"IBM Newsroom","short":"IBM Newsroom"},{"id":"quantum-computing-harvard-448","n":5,"url":"https://news.harvard.edu/gazette/story/2025/11/a-potential-quantum-leap/","publisher":"Harvard Gazette","short":"Harvard Gazette"}]},{"id":"1m0phgi","at":"2025-11-06T00:00:00.000Z","title":"Eleven companies enter DARPA QBI Stage B","status":"confirmed","cites":[{"id":"quantum-computing-qbi-stage-b","n":34,"url":"https://www.darpa.mil/research/programs/quantum-benchmarking-initiative/stage-b-selection","publisher":"DARPA","short":"DARPA"}]},{"id":"nuu04c","at":"2025-11-05T00:00:00.000Z","title":"Quantinuum launches 98-qubit Helios","status":"confirmed","cites":[{"id":"quantum-computing-helios-launch","n":32,"url":"https://www.quantinuum.com/press-releases/quantinuum-announces-commercial-launch-of-new-helios-quantum-computer-that-offers-unprecedented-accuracy-to-enable-generative-quantum-ai-genqai","publisher":"Quantinuum","short":"Quantinuum"},{"id":"quantum-computing-helios-fidelity","n":33,"url":"https://www.quantinuum.com/products-solutions/quantinuum-systems/helios","publisher":"Quantinuum","short":"Quantinuum"}]},{"id":"h1giov","at":"2025-10-22T00:00:00.000Z","title":"Google's Quantum Echoes claims verifiable advantage","status":"confirmed","cites":[{"id":"quantum-computing-quantum-echoes","n":30,"url":"https://research.google/blog/a-verifiable-quantum-advantage/","publisher":"Google Research","short":"Google Research"},{"id":"quantum-computing-quantum-echoes-verifiable","n":31,"url":"https://research.google/blog/a-verifiable-quantum-advantage/","publisher":"Google Research","short":"Google Research"}]},{"id":"1fknlm4","at":"2025-10-21T00:00:00.000Z","title":"IonQ reports 99.99% two-qubit gate fidelity","status":"reported","cites":[{"id":"quantum-computing-ionq-9999","n":29,"url":"https://www.oxionics.com/announcements/ionq-achieves-landmark-result-setting-new-world-record-in-quantum-computing-performance/","publisher":"Oxford Ionics (IonQ)","short":"Oxford Ionics"}]},{"id":"1f83ahh","at":"2025-09-24T00:00:00.000Z","title":"Caltech traps 6,100 neutral-atom qubits","status":"confirmed","cites":[{"id":"quantum-computing-caltech-6100","n":17,"url":"https://www.caltech.edu/about/news/caltech-team-sets-record-with-6100-qubit-array","publisher":"Caltech","short":"Caltech"}]},{"id":"13v1hlf","at":"2025-06-10T00:00:00.000Z","title":"IBM sets 2029 target for fault-tolerant Starling","status":"confirmed","cites":[{"id":"quantum-computing-ibm-starling","n":18,"url":"https://newsroom.ibm.com/2025-06-10-IBM-Sets-the-Course-to-Build-Worlds-First-Large-Scale,-Fault-Tolerant-Quantum-Computer-at-New-IBM-Quantum-Data-Center","publisher":"IBM Newsroom","short":"IBM Newsroom"},{"id":"quantum-computing-ibm-qldpc","n":28,"url":"https://newsroom.ibm.com/2025-06-10-IBM-Sets-the-Course-to-Build-Worlds-First-Large-Scale,-Fault-Tolerant-Quantum-Computer-at-New-IBM-Quantum-Data-Center","publisher":"IBM Newsroom","short":"IBM Newsroom"}]},{"id":"18omg3e","at":"2025-06-09T00:00:00.000Z","title":"IonQ agrees to buy Oxford Ionics for $1.075 billion","status":"confirmed","cites":[{"id":"quantum-computing-ionq-oxford-ionics","n":27,"url":"https://www.ionq.com/news/ionq-announces-agreement-to-acquire-oxford-ionics-accelerating-path-to-pioneering","publisher":"IonQ","short":"IonQ"}]},{"id":"1dczzjd","at":"2025-05-21T00:00:00.000Z","title":"RSA-2048 estimate drops below a million noisy qubits","status":"confirmed","cites":[{"id":"quantum-computing-gidney-rsa-2025","n":14,"url":"https://arxiv.org/abs/2505.15917","publisher":"arXiv (Google Quantum AI author)","short":"arXiv"},{"id":"quantum-computing-gidney-rsa-2019","n":26,"url":"https://arxiv.org/abs/2505.15917","publisher":"arXiv (Google Quantum AI author)","short":"arXiv"}]},{"id":"1r0v8xj","at":"2025-03-06T00:00:00.000Z","title":"USTC reports 105-qubit Zuchongzhi 3.0 sampling result","status":"confirmed","cites":[{"id":"quantum-computing-zuchongzhi3","n":25,"url":"https://www.eurekalert.org/news-releases/1076034","publisher":"University of Science and Technology of China (via EurekAlert!)","short":"University of Science…"}]},{"id":"o2e7wr","at":"2025-02-19T00:00:00.000Z","title":"Microsoft announces Majorana 1 topological chip","status":"disputed","body":"Nature's peer-review file said the accompanying paper was not evidence of Majorana zero modes.","cites":[{"id":"quantum-computing-majorana-1","n":23,"url":"https://news.microsoft.com/source/features/innovation/microsofts-majorana-1-chip-carves-new-path-for-quantum-computing/","publisher":"Microsoft","short":"Microsoft"},{"id":"quantum-computing-majorana-nature-note","n":24,"url":"https://physicsworld.com/a/experts-weigh-in-on-microsofts-topological-qubit-claim/","publisher":"Physics World","short":"Physics World"}]},{"id":"6qbxu2","at":"2025-02-06T00:00:00.000Z","title":"DARPA moves Microsoft and PsiQuantum to US2QC final phase","status":"confirmed","cites":[{"id":"quantum-computing-us2qc","n":22,"url":"https://www.darpa.mil/news/2025/quantum-computing-approaches","publisher":"DARPA","short":"DARPA"}]},{"id":"1rsc13h","at":"2024-12-09T00:00:00.000Z","title":"Google's Willow shows below-threshold error correction","status":"confirmed","body":"Logical error rate halved each time the surface code grew from 3x3 to 7x7 on the 105-qubit chip.","cites":[{"id":"quantum-computing-willow-below-threshold","n":1,"url":"https://blog.google/technology/research/google-willow-quantum-chip/","publisher":"Google","short":"Google"},{"id":"quantum-computing-willow-105","n":21,"url":"https://blog.google/technology/research/google-willow-quantum-chip/","publisher":"Google","short":"Google"}]},{"id":"1a5c4e5","at":"2019-10-23T00:00:00.000Z","title":"Google's Sycamore makes the first quantum advantage claim","status":"confirmed","body":"A 54-qubit chip completed a sampling task in 200 seconds that Google estimated would take a supercomputer 10,000 years. The tracker starts here.","cites":[{"id":"quantum-computing-sycamore-2019","n":19,"url":"https://research.google/blog/quantum-supremacy-using-a-programmable-superconducting-processor/","publisher":"Google Research","short":"Google Research"},{"id":"quantum-computing-hangleiter-first-claim","n":20,"url":"https://arxiv.org/abs/2603.09901","publisher":"arXiv","short":"arXiv"}]}]}