Electric-Field-Induced Coherent Control of Nitrogen-Vacancy Centers

Enabling scalable and energy-efficient control of spin defects in solid-state media is desirable for realiz-ing transformative quantum information technologies. Exploiting voltage-controlled magnetic anisotropy, we report the coherent manipulation of nitrogen-vacancy (N -V) centers by spatially confined magnetic stray fields produced by a proximate resonant magnetic tunnel junction (MTJ). Remarkably, the coher-ent coupling between N -V centers and the MTJ can be systematically controlled by a dc bias voltage, allowing for appreciable electrical tunability in the presented hybrid system. In comparison with current state-of-the-art techniques, the demonstrated N -V-based quantum operational platform exhibits significant advantages in scalability, device compatibility, and energy efficiency, further expanding the role of N -V centers in a broad range of quantum computing, sensing, and communications applications.