Infleqtion and University of Wisconsin–Madison Demonstrate Path to Scalable Quantum Computing with Faster Qubit Measurements and 99.93% Reliability

New research allows for faster computation cycles and more robust error correction, accelerating Infleqtion’s path toward industrial-scale neutral-atom quantum computers

LOUISVILLE, Colo.--(BUSINESS WIRE)--Infleqtion, a global leader in quantum sensing and quantum computing, announced research results from a collaboration with the University of Wisconsin–Madison that demonstrate a more reliable way to measure individual quantum bits, or qubits, without interrupting ongoing circuits. The work addresses one of the central challenges in quantum computing by enabling faster computation cycles while preserving fragile quantum states. This announcement follows Infleqtion’s plans to go public through a merger with Churchill Capital Corp X (NASDAQ: CCCX).

As quantum systems grow in size and complexity, the ability to measure qubits accurately and repeatedly becomes increasingly important. Conventional measurement techniques can introduce errors or cause information to be lost, slowing progress and limiting scalability. The results announced today show how combining precise measurement with continuous cooling can reduce these disruptions, allowing researchers to run computations more efficiently and with greater confidence.

“This work addresses a fundamental bottleneck in quantum computing,” said Dr. Pranav Gokhale, CTO at Infleqtion. “If you can measure qubits accurately without losing them, you can move faster, repeat measurements more reliably, and build systems that scale beyond the laboratory. That is why this result matters.”

Led by researchers in Professor Mark Saffman’s group at the University of Wisconsin–Madison, with sponsored support from Infleqtion, the collaboration delivered two key advances:

• Experimental demonstration: Achieved user-facing qubit measurement fidelities of up to 99.93 percent using a novel technique based on a “forbidden” quadrupole transition in cesium. The approach enables qubit arrays to be measured while atoms are simultaneously cooled, allowing information to be repeatedly acquired without disrupting the computation.
• Path to next-level performance: Presented an in-depth analysis outlining a scalable implementation that could push measurement fidelities toward 99.95 percent in as little as 60 microseconds, improving both computation speed and overall system efficiency.

“High-fidelity, nondestructive measurement is a key requirement for scaling neutral atom quantum systems,” said Professor Saffman. “By combining measurement and cooling, this work shows a practical path toward faster, more reliable operation, and helps move these platforms from controlled laboratory experiments toward systems that can support larger-scale quantum computation.”

The full research findings are published in Physical Review Letters.

About Infleqtion

Infleqtion is a global leader in quantum sensing and quantum computing, powered by neutral-atom technology. We design and build quantum computers, precision sensors, and quantum software for governments, enterprises, and research institutions. Our commercial portfolio includes quantum computers as well as quantum RF systems, quantum clocks, and inertial navigation solutions. Infleqtion is the partner of choice for governments and commercial customers seeking cutting-edge quantum capabilities. Infleqtion announced in September 2025 it plans to go public via a merger with Churchill Capital Corp X (NASDAQ: CCCX). For more information, visit Infleqtion.com or follow Infleqtion on LinkedIn, YouTube, and X.