Miniaturized Low Frequency Electric Field Sensing for Underwater Applications

The Navy is seeking advanced technologies for the accurate measurement of local electric fields in maritime environments. By integrating the Spiral Quantum Interference Reflection-Symmetry Inductor (SQUIRL) quantum platform, we combine topological protection with entangled states to deliver robust, Heisenberg-limited sensitivity under dynamic and noisy conditions. By leveraging modularity, scalability, and room-temperature operation, our quantum sensors can be seamlessly integrated into Navy platforms, ensuring precise and reliable performance for mission-critical applications. Key features of the proposed quantum sensor include: Spin-momentum locking and chiral edge states for intrinsic noise resistance.Dual-mode electromagnetic sensing via the Stark effect (electric fields) and chiral edge currents (magnetic fields).Prototypes equipped with PCBs and Faraday shielding, showcasing robust sensitivity and scalability. A design roadmap focused on size and weight reduction to enhance deployability. Taken together, these features make SQUIRL a breakthrough in electric field sensing—combining the precision of quantum technology with the practicality of a deployable, room-temperature system. The proposed quantum platform will deliver significant advancements in underwater electric field sensing. This technology is a valuable tool for Navy operations and beyond, with commercialization potential spanning multiple high-impact industries, ensuring broad adoption and long-term sustainability.