Robotics2026-06-241 minarXiv:2606.25957expressQuantum Drones Scan Ruins with Magnetic VisionWhen a building collapses, steel rebar turns into a chaotic magnetic compass. Entropy, a measure of disorder, increases, but it's this very disorder that points to voids where people might be.Samuel Tovey·Stefan Prestel·Hiroshi YamauchiAlain AspectAlbert EinsteinAlexei Kitaevquantum sensingNMR spectroscopyquantum measurementvon Neumann entropyquantum error correction👍👎☆SimplePopularAdvanced