Atomic-Scale Steps Direct Quantum Vortices, Boosting Superconductor Efficiency

Researchers have shown that atomic steps—just one atom high—can steer quantum vortices within superconductors, allowing the vortices to move over a thousand times faster in one direction than the opposite. This precise manipulation of quantum motion opens the door to a new class of ultra‑efficient superconducting electronics, potentially transforming how energy is transmitted and processed in future technologies. The discovery demonstrates that even the smallest structural features can have a profound impact on quantum behavior, offering a practical route to enhance superconducting performance.