More than 24 quantum computers are now accessible through the qBraid cloud platform with the addition of Alloy Forge, a new silicon quantum development environment from French firm Quobly. Built to replicate the behavior of silicon spin qubits, Alloy Forge combines pulse-level simulation with cloud access, allowing developers to prepare applications for future Quobly systems before hardware is available, the company says.
“At Quobly, we are not only building quantum computers, but we are also building the software ecosystem that will enable their adoption,” says Maud Vinet, CEO and co-founder of Quobly. The launch of Alloy Forge supports the company’s planned commercial release of its first quantum computer, Alloy Pioneer, by year’s end.
Alloy Forge Enables Realistic Silicon Qubit Development
SpinPulse, Quobly’s open-source pulse-level simulation framework, underpins Alloy Forge, providing developers with granular control over silicon spin qubit operations and native gate behavior. This foundation allows for fine-grained modeling, reproducing the practical behavior and constraints inherent in silicon-based quantum systems, a departure from idealized simulations.
Quobly partnered with qBraid to deliver Alloy Forge, expanding access to this realistic development environment as the company nears the commercial release of Alloy Pioneer, its inaugural quantum computer, slated for the end of 2026, according to the company. The collaboration aims to bridge the gap between simulated environments and production-grade hardware through a unified cloud platform.
This access is not merely theoretical; it’s designed to facilitate the creation of applications that will seamlessly transition to future Quobly systems. Ryan Hill, CTO at qBraid, emphasized the platform’s commitment to accessibility, stating that Quobly, founded in 2022 as a spin-off from CEA-Leti and CNRS, has secured over €160 million in funding, including a recent €115 million Series A round co-led by Bpifrance, SEALSQ and STMicroelectronics, to support this industrialization effort and the development of its silicon spin-qubit processors.
At Quobly, we are not only building quantum computers, but we are also building the software ecosystem that will enable their adoption.
Maud Vinet, CEO and co-founder of Quobly
SpinPulse Framework Models Silicon Spin Qubit Operations
This level of fidelity goes beyond standard quantum simulation tools, incorporating hardware imperfections directly into the emulation environment, allowing developers to anticipate and mitigate real-world challenges. The framework enables fine-grained control over qubit operations and native gate behavior, a capability essential for optimizing quantum circuits for specific hardware architectures.
Alloy Forge’s integration with the qBraid platform expands access to this realistic development environment, offering users familiar cloud-based workflows alongside over 24 other quantum computing technologies. This accessibility is not limited to testing circuits; the software stack also facilitates the validation of quantum applications under constraints mirroring those of actual hardware.
The company’s co-design approach with STMicroelectronics places quantum processors and cryogenic control electronics on a 300mm FD-SOI manufacturing platform, the company says. This partnership, alongside collaborations with TNO and Entropica Labs, demonstrates Quobly’s commitment to both hardware development and the broader quantum ecosystem, the company states. The company’s €160 million in funding, including a recent €115 million Series A, supports this ambitious roadmap toward a silicon spin-qubit demonstrator in 2027.
By bringing Alloy Forge to our platform, we are expanding access to realistic silicon quantum emulation technologies and enabling users to explore new approaches to quantum application development.
qBraid Platform Expands Access to Quobly’s Ecosystem
The qBraid platform now hosts Alloy Forge, providing a new avenue for developers to test applications on a silicon quantum environment. This expansion connects Quobly’s development tools with qBraid’s existing network of quantum computing technologies, bridging Grenoble, France and Chicago, USA in a transatlantic collaboration. Alloy Forge incorporates noise models derived from Quobly’s research, specifically hardware imperfections and non-Markovian noise effects, allowing for more realistic simulations. A partnership with Absolut System delivers the QCube 100-Class 3 system, designed for scaling spin-qubit quantum computers, further supporting this long-term compatibility.
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