Quantum Gravimetry

Quantum gravimetry uses atom interferometry (using the wave nature of atoms to create interference patterns) for precise underground mapping and civil engineering, where quantum gravimeters (devices that measure gravity) use the interference of matter waves (the wave nature of atoms) to measure local gravity with extreme precision (detecting tiny variations in gravitational pull). Unlike other quantum applications, this technology works now (is already practical and deployed), and is used to map underground aquifers (water reservoirs), detect hidden magma chambers (underground molten rock), and find voids under city streets (empty spaces that could cause problems) without digging (avoiding expensive excavation), making it a practical quantum technology that is already providing value in real-world applications, enabling non-invasive exploration and monitoring of underground structures.

This innovation addresses the need for non-invasive underground exploration, where traditional methods require digging. By using quantum sensors, these systems can detect underground features without excavation. Companies and research institutions are developing and deploying these systems.

The technology is particularly significant for underground exploration, where non-invasive methods are valuable. As the technology improves, it could enable new applications. However, ensuring accuracy, managing complexity, and achieving widespread deployment remain challenges. The technology represents a mature application of quantum sensing, with commercial systems available. Success is already being achieved, with quantum gravimeters being used in various applications. Quantum gravimetry is one of the most mature quantum sensing technologies, with practical applications already deployed.