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A Hidden Collision Inside Quantum Tunnels Changes Everything - Image

A Hidden Collision Inside Quantum Tunnels Changes Everything

28 July 2025

Scientists from POSTECH and Max Planck have observed something never seen before: electrons don’t just tunnel through atomic barriers they loop back and crash into the nucleus during the process.This unexpected “under-the-barrier recollision” challenges long-held assumptions in quantum physics and offers new insight into how tunneling really works.The discovery could lead to better control of electrons in technologies like semiconductors, quantum computing, and ultrafast lasers