Announcement • 8h

Infleqtion Introduces Quantum Spectrum as New Category in Quantum Sensing

Infleqtion formally established Quantum Spectrum as a new category within quantum sensing. Quantum Spectrum represents the first fundamental shift in radio frequency (RF) sensing architecture in decades, arriving exactly when the world needs trusted signals most. Quantum Spectrum is a new category are both defining and leading. Quantum Spectrum is the answer: atom-based RF sensing that detects, classifies, and authenticates signals in a world of drone proliferation, GPS spoofing, jamming, electronic warfare, and spectrum congestion where conventional receivers are increasingly insufficient. Quantum Spectrum joins Quantum Clocks, Quantum Gravity Gradiometers, and Quantum Inertial Sensing as a defined segment of the quantum sensing domain. Infleqtion is the first company with contracted defense programs in three allied nations developing atom-based RF sensing for operational deployment, with prime integrator partners including Dell Federal, L3Harris, and SAIC already engaged. Quantum Spectrum introduces a new sensing layer. Infleqtion's Quantum Spectrum receivers use Rydberg atoms as the sensing medium, replacing conventional RF front ends with atom-based detection that tunes continuously from hertz to terahertz across the full RF spectrum in a single aperture. The result is broader spectrum awareness, earlier detection, and more resilient operation in contested environments where conventional systems are increasingly strained. Where antennas fail, atoms do not. Infleqtion is accelerating development of new prototypes, running field trials in operationally relevant environments, hardening systems for real-world deployment, and driving aggressively toward a fully productized receiver family. It has active field programs in the United States, United Kingdom, and Australia developing atom-based RF sensing for operational defense deployment. In the United States, Infleqtion is working with the U.S. Army's DEVCOM Army Research Laboratory (ARL) under the Robust, Integrated Quantum Electromagnetic Receiver (RIQER) project. Through this effort, Infleqtion and ARL are designing and fielding a transportable quantum RF demonstration system based on Rydberg atom–based sensing. The system will serve as a mobile test bed for evaluating the utility of quantum RF receivers for Army mission needs, including positioning, navigation and timing (PNT), spectrum monitoring, and operation in jammed or GPS-denied environments. The project directly supports the Army's modernization priorities by enabling soldiers to navigate, communicate, and operate securely when traditional RF and GPS systems are degraded or denied. By focusing on ruggedization, environmental hardening, and integration with Army test infrastructure, RIQER establishes a clear path toward deployable quantum RF capabilities. In the United Kingdom, Infleqtion is leading the Quantum Direction Finding (QuDiFi), an Innovate UK–funded program to develop a deployable quantum RF direction-finding system based on atom-based, broadband sensing. The project extends existing single-point quantum RF sensing into true multi-sensor direction finding, using multiple spatially separated QRF quantum sensor heads to measure signal angle-of-arrival with high precision across frequency bands that challenge conventional antenna-based systems, particularly at lower frequencies used for long-range communications and navigation. In Australia, Infleqtion is spearheading the development of a Quantum-Optimized Broadband Rydberg Atom (QOBRA) Receiver System under the Advanced Strategic Capabilities Accelerator – Emerging and Disruptive Technologies program, delivered by the Defence Science and Technology Group. As part of this initiative, Infleqtion is developing a transportable Rydberg atom-based receiver designed to maximize sensitivity and instantaneous bandwidth through machine learning by tuning the systems multi-dimensional parameters. The project supports Infleqtion's objective of developing field-ready quantum RF sensing capability, strengthening AUKUS interoperability across allied programs in the U.S. and U.K. These programs are the field trials, ruggedization cycles, and real-world validation that move Quantum Spectrum from demonstrated technology to deployable capability. They also may establish the performance foundation for near-term commercial applications in aviation spectrum management, energy grid communications, counter-drone detection, and next-generation telecommunications. McKinsey now estimates the quantum sensing market at approximately $31 billion by 2040, and Quantum Spectrum represents one of its fastest-emerging segments. Infleqtion holds substantial contracted positions in the category, with integrator relationships already in place to scale.

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