Proposed rapid detection of nuclear spins with entanglement-enhanced sensors

TL;DR

This paper proposes an entanglement-based method to significantly speed up the detection of distant nuclear spins using NV centers in diamond, enabling faster nanoscale nuclear magnetic resonance spectroscopy.

Contribution

It introduces a novel entanglement-enhanced approach that reduces detection time for nuclear spins compared to traditional separable NV center methods.

Findings

Detection time is reduced by several orders of magnitude.

Entanglement enables rapid nuclear spin detection.

Potential applications in nanoscale NMR spectroscopy.

Abstract

Recently, there have been significant developments to detect nuclear spins with an nitrogen vacancy (NV) center in diamond. However, due to the nature of the short range dipole-dipole interaction, it takes a long time to detect distant nuclear spins with the NV centers. Here, we propose a rapid detection of nuclear spins with an entanglement between the NV centers. We show that the necessary time to detect the nuclear spins with the entanglement is several orders of magnitude shorter than that with separable NV centers. Our result pave the way for new applications in nanoscale nuclear magnetic resonance spectroscopy.