Engineering nuclear spin dynamics with optically pumped nitrogen-vacancy center

TL;DR

This paper develops a comprehensive theory for using optically pumped nitrogen-vacancy centers in diamond as a controllable, non-equilibrium environment to manipulate nuclear spin dynamics, enabling advanced quantum control and noise suppression.

Contribution

It introduces a general theoretical framework for nuclear spin control via NV centers, addressing an open problem in nuclear spin noise suppression.

Findings

The theory enables tuning of nuclear spin dephasing, relaxation, and squeezing.

It provides a method to engineer dissipative nuclear spin evolution.

The approach offers new possibilities for quantum information processing.

Abstract

We present a general theory for using an optically pumped diamond nitrogen-vacancy center as a tunable, non-equilibrium bath to control a variety of nuclear spin dynamics (such as dephasing, relaxation, squeezing, polarization, etc.) and the nuclear spin noise. It opens a new avenue towards engineering the dissipative and collective nuclear spin evolution and solves an open problem brought up by the $^{13}$C nuclear spin noise suppression experiment [E. Togan \textit{et al}., Nature 478, 497 (2011)].