Cambridge, UK, April 17, 2025 -- Riverlane, the global leader in quantum error correction (QEC) technology, today announced its participation in three major projects under the Defense Advanced Research Projects Agency’s (DARPA) Quantum Benchmarking Initiative (QBI). This prestigious program aims to rigorously verify and validate quantum computing approaches for utility-scale operation by 2033.

Through collaborations led by Rigetti Computing, Atlantic Quantum and Diraq, Riverlane will provide its QEC technology and expertise to help develop and validate three distinct approaches to quantum computing.  

The QBI program is structured in three stages, beginning with Stage A, which assesses the feasibility of proposed Utility-Scale Quantum Computer (USQC) concepts. A USQC is defined as a system whose computational value exceeds its cost, measured in terms of performance, scalability, and real-world applicability. Building on earlier DARPA programs, QBI features a rigorous, staged evaluation process designed to separate hype from reality and identify viable technical paths forward.

Riverlane’s participation across all three projects highlights its leadership in real-time QEC, a foundational capability for achieving fault-tolerant quantum computing at scale.

Riverlane's Contributions:

• 1. Rigetti Computing - Riverlane is collaborating with Rigetti Computing on its Utility-Scale Quantum Computer (USQC) concept, which combines Rigetti’s proprietary multi-chip architecture with scalable quantum error correction (QEC) codes. Riverlane will help refine the proposed USQC concept and validate the underlying technology.
• 2. Atlantic Quantum - Riverlane is working with a consortium led by Atlantic Quantum to advance a fluxonium-based quantum platform featuring co-located cryoelectronic control. Riverlane is contributing its QEC Stack (Deltaflow) to help enable large-scale fault tolerance.
• 3. Diraq - Riverlane is supporting Diraq’s silicon spin qubit approach, which is based on standard CMOS manufacturing processes. As part of a broader Australian-UK-US consortium, Riverlane is providing QEC solutions to ensure reliable real-time quantum error correction.

Each collaboration reflects Riverlane’s ability to deliver QEC technology that fits the unique requirements of different quantum hardware platforms, supporting a shared vision for the next generation of quantum systems.

“Quantum error correction is essential for scaling quantum computing from today’s prototypes to tomorrow’s utility-scale systems,” said Steve Brierley, CEO & Founder of Riverlane. “We’re proud to bring our expertise to three outstanding teams and support DARPA’s mission to accelerate the path to practical quantum computing.”

Riverlane looks forward to continued collaboration with DARPA and its partners as the QBI program advances toward identifying viable pathways to utility-scale quantum computers.