Infleqtion’s Sqale System Targets 100 Logical Qubits for Fault Tolerance

Infleqtion is pursuing a significant step toward practical quantum computing with its Sqale system, designed to demonstrate over 50 logical qubits and scale to 100, a crucial threshold for error correction. The company will deploy the full-stack quantum computing platform in Illinois, integrating it with NVIDIA NVQLink for communication between the quantum processor and GPU computing. This installation forms the core of a new Chicago Quantum Innovation Center focused initially on applying quantum optimization to challenges facing the American energy grid, including unit commitment and contingency analysis. “Bringing a neutral-atom quantum computer to Illinois means our researchers, entrepreneurs and innovators will have access to advanced quantum computing technology,” said Governor JB Pritzker. Infleqtion’s expansion builds on existing operational neutral-atom systems in the United Kingdom and Japan, bringing proven technology to U.S. infrastructure.

Sqale System: Fault-Tolerance and NVIDIA NVQLink Integration

Infleqtion’s Sqale system represents an advance in the pursuit of practical quantum computing, targeting 100 logical qubits as a step toward achieving fault tolerance; this is not merely increasing qubit count, but engineering qubits specifically designed to mitigate quantum error. The system’s architecture is designed to scale beyond 1,000 physical qubits, demonstrating a roadmap for future expansion and increased computational power. Central to Sqale’s performance is its integration with NVIDIA NVQLink, which enables low-latency coupling between the quantum processor and GPU-accelerated computing, a critical feature for accelerating complex quantum calculations. This coupling allows for a more seamless interaction between the quantum and classical processing units, maximizing the efficiency of hybrid quantum-classical algorithms.

Researchers and developers will access the platform through Infleqtion’s Superstaq software and the National Quantum Algorithm Center (NQAC), facilitating broader experimentation and application development. Pranav Gokhale, CTO and co-founder at Infleqtion, explained that “Energy is one of the best proving grounds for quantum computing because the problems are consequential and immediate,” highlighting the practical focus of the new Chicago Quantum Innovation Center. The center’s initial focus on the American energy grid underscores a shift toward solving real-world problems, specifically tackling challenges like unit commitment, contingency analysis, and nuclear fuel loading to improve grid reliability and safety. The company, in collaboration with NVIDIA, previously published the first demonstration of a materials science application using logical qubits, solidifying its position in quantum innovation.

The Chicago Quantum Innovation Center, established by Infleqtion, is immediately concentrating its efforts on addressing challenges within the American energy grid, moving beyond theoretical quantum computing applications to practical problem-solving. He further noted the increasing strain on the grid due to the power demands of artificial intelligence data centers, a problem traditional tools are struggling to manage. The company is already building on existing momentum, holding an ARPA-E award for the ENCODE project, focused on optimizing energy delivery, and participating in a National Quantum Algorithm Center Grand Challenges program led by Professor Fred Chong at the University of Chicago, in partnership with Constellation Energy and EPRI.