Quantum sensing to map hidden critical mineral deposits ahead of crucial 2027 test

Neutral-atom quantum computing firm Infleqtion plans to test a quantum sensing system in Colorado in 2027 that could help locate critical mineral deposits underground before exploration companies spend heavily on drilling. The company says its quantum gravity gradiometry (QGG) technology can detect extremely small variations in Earth’s gravitational field. Those changes can reveal differences in underground density and geological structures that may point to potential mineral deposits. The planned field demonstration will test whether the technology can provide useful subsurface information earlier in the mineral exploration process. Infleqtion is evaluating several possible sites in Colorado’s Third Congressional District, with the final location and timing still to be announced. If successful, the approach could give exploration teams another way to narrow down promising areas before bringing in drilling equipment. That matters because finding and developing domestic sources of critical minerals can be expensive, time-consuming, and uncertain. Quantum sensing sees underground QGG works by measuring tiny changes in gravity caused by variations in the density of material beneath the ground. Different geological formations produce different gravitational signatures, allowing sensors to build a picture of what may be below the surface. The technology does not replace drilling or existing geological surveys. Instead, Infleqtion says it could be used alongside established geological and geophysical techniques to identify areas that deserve closer investigation. That could change an early stage of mineral exploration, where companies must decide where to spend money collecting more detailed data and drilling test wells. Better information before drilling could help reduce the number of low-potential sites that move into more expensive exploration stages. “America cannot secure the supply chains it cannot see,” said Matt Kinsella, CEO of Infleqtion. “The first step toward mineral independence is knowing what you actually have. In Colorado, we plan to demonstrate how quantum sensing can provide better subsurface intelligence earlier in the exploration process—helping identify promising geological structures and prioritize where further exploration and drilling should occur.” Mapping minerals before drilling The Colorado demonstration is also tied to a broader push to use quantum sensing for domestic mineral mapping. Infleqtion supports the Quantum-Enhanced Critical Minerals Mapping Act of 2026, a proposed measure that would direct the U.S. Geological Survey to incorporate quantum gravity gradiometry into its Earth Mapping Resources Initiative. The technology could be particularly useful for critical minerals because deposits can be difficult to identify from surface observations alone. Minerals used in defense systems, energy infrastructure, advanced manufacturing and emerging technologies are increasingly viewed as strategically important. Congressman Jeff Hurd, who represents Colorado’s Third District, said the project could put quantum technology to work in understanding domestic resources. “That is why I introduced the Quantum-Enhanced Critical Minerals Mapping Act, to put cutting-edge American technology to work helping us better understand the resources we have here at home.” Infleqtion is already developing quantum sensing technologies through programs involving the U.S. Department of War, NASA and the UK Royal Navy. Its broader portfolio includes quantum computers, optical clocks, RF receivers and inertial sensors.The 2027 Colorado test will ultimately show whether the company’s gravity-sensing approach can move from a promising technology to a practical tool for mineral exploration. Get the latest in engineering, tech, space & science - delivered daily to your inbox.With over a decade-long career in journalism, Neetika Walter has worked with The Economic Times, ANI, and Hindustan Times, covering politics, business, technology, and the clean energy sector. Passionate about contemporary culture, books, poetry, and storytelling, she brings depth and insight to her writing. When she isn’t chasing stories, she’s likely lost in a book or enjoying the company of her dogs.