Dr. Luca Lepori

Dephasing-tolerant quantum sensing for magnetic fields

We describe a quantum protocol for single effective spins, generally higher than 1/2, to measure magnetic fields with high precision and spatial resolution, compared to the so far available schemes. This relevant improvement is allowed by a parallel qudit-based quantum error-correction procedure against dephasing. Finally, we discuss the feasibility of the proposed approach in present experimental platforms, as molecular nanomagnets, trapped ions and ultra-cold atoms.