Electron-Mediated Nuclear-Spin Interactions Between Distant NV Centers

TL;DR

This paper introduces a scheme for controlled quantum interactions between distant NV centers in diamond, leveraging electron-mediated nuclear spin coupling and microwave driving to mitigate magnetic noise, advancing solid-state quantum computing.

Contribution

It presents a novel method for enabling coherent nuclear spin interactions between separated NV centers using electron spins and microwave driving to suppress environmental magnetic fluctuations.

Findings

Achieves controlled nuclear spin interactions over distance.

Suppresses environmental magnetic noise effectively.

Provides a foundation for solid-state quantum processors.

Abstract

We propose a scheme enabling controlled quantum coherent interactions between separated nitrogen-vacancy centers in diamond in the presence of strong magnetic fluctuations. The proposed scheme couples nuclear qubits employing the magnetic dipole-dipole interaction between the electron spins and, crucially, benefits from the suppression of the effect of environmental magnetic field fluctuations thanks to a strong microwave driving. This scheme provides a basic building block for a full-scale quantum information processor or quantum simulator based on solid-state technology.