# Dissipatively stabilized quantum sensor based on indirect nuclear-nuclear interactions

## TL;DR

This paper introduces a dissipative quantum sensing method using NV centers to mediate nuclear spin interactions, enabling high-fidelity, selective sensing under ambient conditions with enhanced spectral resolution.

## Contribution

It presents a novel dissipative approach that uses NV centers as mediators for nuclear spin interactions, improving quantum sensing capabilities at large distances and ambient conditions.

## Key findings

- Achieves high-fidelity quantum gates between nuclear spins at large distances
- Provides a tunable frequency filter with high spectral selectivity
- Enables continuous signal collection with high SNR

## Abstract

We propose to use a dissipatively engineered nitrogen vacancy (NV) center as a mediator of interaction between two nuclear spins that are protected from decoherence and relaxation of the NV. Under ambient conditions this scheme achieves highly selective high-fidelity quantum gates between nuclear spins in a quantum register even at large NV-nuclear distances. Importantly, this method allows for the use of nuclear spins as a sensor rather than a memory, while the NV spin acts as an ancillary system for the initialization and read out of the sensor. The immunity to the decoherence and relaxation of the NV center leads to a tunable sharp frequency filter while allowing at the same time the continuous collection of the signal to achieve simultaneously high spectral selectivity and high signal-to-noise ratio (SNR).