Temperature drift rate for nuclear terms of NV center ground state Hamiltonian

TL;DR

This paper investigates how temperature variations affect the hyperfine components of the NV center's ground state Hamiltonian, which is crucial for improving the accuracy of diamond-based quantum sensors.

Contribution

It provides a detailed analysis of the temperature drift rate for nuclear terms in the NV center's Hamiltonian, aiding in sensor calibration and stability.

Findings

Quantifies temperature-induced shifts in hyperfine components

Highlights importance for sensor accuracy and stability

Provides data for improved temperature compensation

Abstract

Nitrogen-vacancy (NV) center in diamond was found to be a powerful tool for various sensing applications. The main work horse of this center so far has been optically detected electron resonance. Utilization of the nuclear spin has the potential of significantly improving sensitivity in rotation and magnetic field sensors. Ensemble-based sensors consume quite a bit of power, thus requiring an understanding of temperature-related shifts. In this article, we provide a detailed study of the temperature shift of the hyperfine components of the NV center.