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Claude finds new quantum-circuit designs, cuts resource product to 1/39 — Harvard, QuEra, Anthropic
Read More: Claude finds new quantum-circuit designs, cuts resource product to 1/39 — Harvard, QuEra, AnthropicUsing a large language model to search quantum circuits, researchers reduced both Toffoli gate counts and logical qubit counts in seven of eight component circuits.
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Rigetti hits 99.5% median two‑qubit fidelity across 108 qubits; Q3 revenue falls as capex raises cash burn
Read More: Rigetti hits 99.5% median two‑qubit fidelity across 108 qubits; Q3 revenue falls as capex raises cash burnRigetti reported its Q3 2026 results. Its 108‑qubit superconducting system achieved a median two‑qubit gate fidelity of 99.5% across all qubits.
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D-Wave backlog up 13× while operating cash outflow doubles as gate‑based development costs rise
Read More: D-Wave backlog up 13× while operating cash outflow doubles as gate‑based development costs riseD-Wave's Q3 2026 revenue was $4.5 million. While remaining performance obligations expanded sharply, gross margin fell and losses continued.
特集
Quantum Index Originals
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Is Japan Investing Too Early in Quantum? Lessons from AI History on Strategy and Sustained Funding
続きを読む: Is Japan Investing Too Early in Quantum? Lessons from AI History on Strategy and Sustained FundingJapan is committing large public funds to quantum technologies, yet practical quantum computers still face major challenges. Drawing on Japan’s AI research history and current quantum policy, this piece examines the rationale for early investment and the importance of continuing funding without relying on excessive expectations.
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2026 Q3 results roundup: nine leading quantum computing firms’ schedules, performance, key takeaways
続きを読む: 2026 Q3 results roundup: nine leading quantum computing firms’ schedules, performance, key takeawaysQuarterly results for six leading quantum-computing companies concentrate in early November 2026. This roundup lists announcement dates for Quantinuum, IQM, QCi, D-Wave, Rigetti and Xanadu, and explains key points to watch such as revenue, orders and cash positions.
QI 独自コンテンツ
Quantum Index Insights
Quantum Company Portfolio
A stock portfolio of publicly traded quantum computing companies based on Quantum Index’s proprietary company rankings. It tracks both company fundamentals and market valuations over time. Currently in beta.
Quantum Industry Network
Visualize the relationships between quantum companies, partners, customers, research institutions, and government organizations. Explore the industry network shaping the commercialization of quantum technologies. Currently in beta.
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Xanadu and HyperLight cut optical switch insertion loss to 7 mdB, advancing photonic quantum scaling
Read More: Xanadu and HyperLight cut optical switch insertion loss to 7 mdB, advancing photonic quantum scalingUsing thin-film lithium niobate optical switches, insertion loss was reduced from 20 mdB to 7 mdB. This result advances efforts to scale photonic quantum computers.
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IonQ partners with Carahsoft to expand U.S. government sales channel for quantum technologies
Read More: IonQ partners with Carahsoft to expand U.S. government sales channel for quantum technologiesCarahsoft will act as IonQ’s public-sector reseller, helping provide quantum computing, networking, sensing, and security technologies to U.S. government agencies and other public customers.
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Diraq operates 8‑qubit silicon‑spin quantum computer in commercial data center, targets 256 qubits
Read More: Diraq operates 8‑qubit silicon‑spin quantum computer in commercial data center, targets 256 qubitsDiraq has installed an 8‑qubit silicon‑spin quantum computer in a commercial data center in Sydney, Australia. It aims to expand to as many as 256 qubits within a year.
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QCi Q3 2026 revenue jumps to $9.5M driven by acquisitions; gross margin 4.5%
Read More: QCi Q3 2026 revenue jumps to $9.5M driven by acquisitions; gross margin 4.5%Quantum Computing Inc.’s 2026 third-quarter revenue expanded to $9.5 million. Gross margin was 4.5% and net loss totaled $15.1 million.
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Pasqal Q3 revenue down 42% but ~5-year cash runway; shares slump and commercialization challenges
Read More: Pasqal Q3 revenue down 42% but ~5-year cash runway; shares slump and commercialization challengesPasqal disclosed its results and business progress for Q3 2026. Revenue fell as there were no QPU sales, while QPU-related services revenue rose 53% year-on-year.
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IBM installs Nighthawk r2 quantum system at University of Chicago; Illinois grants $25M
Read More: IBM installs Nighthawk r2 quantum system at University of Chicago; Illinois grants $25MAn IBM Quantum System Two with the Nighthawk r2 processor has been installed at the University of Chicago; the system is planned to move to the Illinois Quantum and Microelectronics Park (IQMP) in future.
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IonQ to provide free quantum tools to Commonwealth developing states, commercial impact uncertain
Read More: IonQ to provide free quantum tools to Commonwealth developing states, commercial impact uncertainIonQ has announced plans to offer developing Commonwealth member states free quantum-computing access, support for migration to post‑quantum cryptography, and radar satellite imagery.
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IBM and AMD build live quantum error‑correction research platform to support Starling in 2029
Read More: IBM and AMD build live quantum error‑correction research platform to support Starling in 2029An IBM quantum processor is colocated with ORNL’s HPC equipped with AMD GPUs and CPUs to validate low‑latency quantum error‑correction processing.
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JIJ releases SQOA solver to handle more variables than qubits, raising questions over IBM-dependent delivery model
Read More: JIJ releases SQOA solver to handle more variables than qubits, raising questions over IBM-dependent delivery modelJIJ has released a quantum–classical hybrid optimization solver that can handle decision variables exceeding the number of qubits.
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Quantinuum unveils Nexus roadmap to unify development environment through Apollo (2029)
Read More: Quantinuum unveils Nexus roadmap to unify development environment through Apollo (2029)Plans to automate error correction and quantum–classical integration in stages, aiming for a unified development environment from Helios to Apollo (planned 2029).
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IonQ posts record Q3 2026 revenue up 336%; quantum computing grows, acquisitions boost results
Read More: IonQ posts record Q3 2026 revenue up 336%; quantum computing grows, acquisitions boost resultsIonQ’s Q3 2026 revenue rose 336% year‑over‑year to $173.8 million, and the company raised its full‑year revenue guidance to $505 million–$515 million.
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Quantinuum Q3 revenue rises 233% to $9.1M; YTD sales down, $1.94B cash for development
Read More: Quantinuum Q3 revenue rises 233% to $9.1M; YTD sales down, $1.94B cash for developmentQuantinuum’s Q3 2026 revenue increased to $9.1 million. The company raised its full-year outlook while reporting a GAAP net loss of $118 million.