Quantinuum Systems Releases November 3rd, 2025
We are proud to announce our new Quantum Volume record, the release of our new product page, and several new key capabilities.
Announcements
Quantum Volume N=25 and 3 9s Data
On our H2-2 quantum computer we hit 33.5 million in Quantum Volume! This is a 4x improvement since we met our five-year challenge of reaching 8 million back in May. In addition to this we have reached a two qubit fidelity of greater than 99.9% on H2-2 as well.
Explore the data:
New Products Update Page
Quantinuum is launching a new product page featuring key updates and news across all product lines. Visit regularly to stay informed about our latest innovations and releases.
Access this new page at https://docs.quantinuum.com/product-updates
New Hardware Capabilities
Dynamical Decoupling
Dynamical decoupling (DD) is now available on the H2 emulator and hardware. DD is a server-side capability for coherent memory errors suppression that works by adding pulses to change the sign on these errors overtime.
Read more about it here.
Native Random Number Generation (RNG) Support
System Model H2 now supports random number generation via pytket. This enables generation and consumption of random integers during real-time program execution. Native RNG is currently restricted to bounded integers and is available via the pytket circuit builder API
Read documentation on it here.
New Nexus Capabilities
Busyness Metrics in Nexus
Nexus has recently added two indicators aimed towards helping users get results faster, by guiding them towards less busy machines: Organizational Queued Credits and Machine Usage. These are available within the web portal on the backends page and via the Nexus APIs.
Read documentation on it here.
Qubit Reuse in Nexus
Nexus has recently added a proprietary compilation pass called Qubit Reuse compilation. This capability improves resource utilization of qubits by exploiting the light cone structure of the user circuit. The algorithm finds all the light cones in the user circuit and then reorders the cones to reuse as many qubits as possible. This compilation pass requires the high-fidelity Mid-circuit Measurement & Reset (MCMR) operation.
Learn More:
New Accessibility Pathways
QIR Support via Nexus
Nexus supports management and submission of Quantum Intermediate Representation (QIR) programs. QIR is an industry standard adopted by Quantinuum, provides cross-compatibility with other quantum providers, and acts as an alternate submission pathway to Guppy to submit to our systems. QIR provides a specification for features supported by each generation of Quantinuum quantum computers, including the forthcoming Quantinuum Helios generation. QIR also provides an experimental path for Guppy programs to access System Model H2.
Learn More:
CUDA-Q Submission Guide
CUDA Quantum (CUDA-Q) is a framework developed by NVIDIA for quantum computing applications. It is designed to integrate quantum and classical computing, enabling the simulation of quantum circuits, the development of quantum algorithms, and hybrid quantum-classical workflows. CUDA-Q is fully integrated with Quantinuum system hardware, allowing developers to easily submit and run quantum workloads.
Learn more:
Support
Please reach out to QCsupport@quantinuum.com if you have questions on any of the above.