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Your weekly briefing on the research, companies, and infrastructure shaping quantum computing.
This week in one minute
Quobly and Absolut System set a four-phase roadmap for the cryogenic infrastructure needed to scale Quobly's silicon spin-qubit computers.
EuroHPC selected NVision for a four-month project to map a molecular spin-qubit architecture toward an integrated, error-corrected system.
Quantinuum disclosed a non-binding MOU with Aramco to explore energy-sector quantum research, use cases, and benchmarking across hardware approaches.
IonQ highlighted a six-qubit chemistry-simulation experiment that used mid-circuit checks to lower the measured logical error rate by up to 54% against a direct run in the reported experiment.
NIST's new secure-hardware workshop report places post-quantum cryptography alongside chiplets and AI hardware in its standards and supply-chain priorities.
Quantum stock tracker
Market data through the September 9, 2026 close.
Ticker | Company | Type | Price | 1D | 1W |
|---|---|---|---|---|---|
Rigetti Computing | Quantum-focused | $15.60 | -1.3% | +4.9% | |
D-Wave Quantum | Quantum-focused | $17.16 | -2.9% | +4.1% | |
Quantum Computing Inc. | Quantum-focused | $8.10 | -1.5% | +3.3% | |
IonQ | Quantum-focused | $38.57 | -4.7% | +2.5% | |
Pasqal | Quantum-focused | $8.00 | -0.5% | -34.4% | |
IBM | Diversified | $240.56 | +3.6% | +3.8% | |
Honeywell | Diversified | $205.66 | -1.2% | -0.2% | |
Defiance Quantum ETF | Sector benchmark | $148.44 | -0.3% | +2.6% |
Footnote: Daily performance compares with September 8, 2026; weekly performance compares with September 2, 2026. Returns are price changes and do not include dividends.
Market signal: The tracked quantum-focused shares fell on September 9 after gains over the prior week. Rigetti rose 4.9%, D-Wave rose 4.1%, Quantum Computing Inc. rose 3.3%, and IonQ rose 2.5% from September 2. Pasqal remained the outlier, down 34.4% over the same period.
Quobly and Absolut System set a roadmap for cryogenic scale-up
Quobly and Absolut System signed an industrial partnership declaration for the cooling infrastructure that Quobly says it needs to scale its silicon spin-qubit computers. A spin qubit stores quantum information in the spin of an electron. Quantum processors operate at extremely low temperatures, so cryogenic infrastructure is the equipment that keeps the processor and its control electronics cold enough to work.
Their first platform, QCube 100-Class 3, is designed to provide 100 milliwatts of cooling power at 500 millikelvin, or half a degree above absolute zero. The companies describe four phases: qualification of the first platform, industrialization of that design, development of a next-generation platform, and volume production intended to support Quobly's longer-term hardware roadmap.
Why it matters: Cooling, wiring, and control equipment become system constraints as a processor grows. This agreement supplies a named engineering and manufacturing plan.
EuroHPC selects NVision for a molecular spin-qubit roadmap project
EuroHPC, the European program that funds high-performance computing and quantum infrastructure, selected NVision Quantum Technologies as one of 13 companies in its Quantum Grand Challenge. NVision says its four-month QOSMOS project will produce a technical and financial roadmap for PIQC, its proposed architecture based on molecular spin qubits connected through photonic integrated circuits. A photonic integrated circuit is a chip that routes and processes light; NVision intends it to connect qubits across a modular system.
The Phase 1 project is slated to receive €293,455 once the grant agreement is signed. NVision says the project will benchmark its current technology, define hardware, software, and integration milestones, and explore chemistry and pharmaceutical simulation applications. A physical qubit is one individual hardware quantum bit; an error-corrected system combines many physical qubits to protect calculations from errors.
Why it matters: The result is a funded development plan. An error-corrected computer remains a future technical goal, and the milestones and benchmarks produced during the project will make NVision's route from molecular qubits to a modular machine more concrete.
Quantinuum and Aramco begin an exploratory energy-research program
Quantinuum disclosed a non-binding memorandum of understanding with Aramco to explore industrial quantum-computing research and applications in energy and digital transformation. The parties plan preliminary technical onboarding, knowledge exchange, and an assessment of scientific and industrial challenges that could be suitable for quantum research. They also plan to benchmark different quantum-computing approaches.
The MOU does not commit either company to a commercial deployment or a research contract. It creates a framework for identifying problems and preparing for a potential deeper collaboration on fault-tolerant quantum computing. Fault tolerance is the ability of a quantum computer to keep a calculation reliable even when individual qubits make errors.
Why it matters: Large industrial users are starting with problem selection, technical preparation, and hardware evaluation. Progress here should be measured by the research programs, data, and validated workflows that follow the MOU.
A mid-circuit check lowers errors in a chemistry-simulation experiment
IonQ highlighted work with qBraid and NVIDIA on a six-qubit encoded chemistry-simulation experiment. The paper reports up to a 54% lower logical error rate than a direct run using physical qubits. Trotterization breaks a time-dependent chemistry calculation into many smaller circuit steps; as those steps accumulate, noise can accumulate as well.
The reported approach used mid-circuit measurement, which checks selected quantum states during a computation, together with a noise-reduction technique called CliNR. The authors report that the measured advantage disappeared when the stabilizer checks were deferred until the end of the circuit.
Why it matters: This application-specific error-mitigation result does not demonstrate fully error-corrected quantum computing. It gives a concrete experiment to watch as researchers test whether mid-circuit control can improve useful workloads on larger systems.
NIST ties post-quantum security to the hardware supply chain
NIST published a report from its Sustainable Hardware Security workshop that identifies standards, provenance, traceability, verification, and supply-chain security as priorities for next-generation hardware. The report names post-quantum computing alongside chiplets and AI hardware in its standards and governance discussion.
Post-quantum cryptography is a set of new encryption methods designed to withstand future quantum-computer attacks. NIST's report does not announce a new cryptographic standard. It documents recommendations for how security can extend from silicon and intellectual property through manufacturing, deployment, operation, and end of life.
Why it matters: Quantum-safe migration requires inventories of software and cryptography, as well as hardware systems that hold cryptographic identities and trusted data.
Quantum Job Board
Five open roles across the quantum ecosystem.
QUERA
Scientific Intern
Boston, MA | Internship
Support QuEra's scientific teams on a variety of support projects and initiatives.
RIGETTI
Senior Quantum Engineer, Gate Calibration
Berkeley, CA | Hybrid | $175,000-$200,000
Lead experiments and calibration work that improves two-qubit gate performance on superconducting processors.
ATOM COMPUTING
Quantum Error Correction Software Engineer
Berkeley, CA or Boulder, CO | Hybrid | $155,000-$185,000
Build software for fault-tolerant demonstrations, real-time decoding, circuit compilation, and analysis on neutral-atom hardware.
RIVERLANE
Quantum Scientist - Applied QEC
Boston, MA | Hybrid | $135,000-$170,000
Design and interpret quantum-error-correction experiments with hardware partners and contribute to applied research.
ZURICH INSTRUMENTS
Business Development Manager - Quantum Technology
Boston, MA | Hybrid
Develop customer relationships and revenue opportunities for quantum-control and test instrumentation.
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Bell State is a publication of Spice Capital.
