Atomic-scale positioning of single spins via multiple nitrogen-vacancy centers

TL;DR

This paper introduces a method to precisely locate a single electron spin at the atomic scale using multiple nitrogen-vacancy centers in diamond, enabling advanced nanoscale magnetometry and quantum computing.

Contribution

The paper proposes a novel scheme for atomic-scale spin positioning using multiple NV centers, with noise suppression and coherence oscillation analysis.

Findings

Achieved sub-nanometer positioning resolution.

Demonstrated effective noise suppression via dynamical decoupling.

Potential applications in high-resolution magnetometry and quantum computing.

Abstract

We present a scheme of positioning a single electron spin with sub-nanometer resolution through multiple nitrogen-vacancy centers in diamond. With unwanted noise suppressed by dynamical decoupling, the spin coherence of each center develops characteristic oscillations due to a single electron spin located $4{\sim20}$ nm away from the centers. We can extract the position information from the characteristic electron spin-coherence oscillations of each center. This scheme is useful for high-resolution nanoscale magnetometry and spin-based quantum computing.