Landau-Zener-Stuckelberg interferometry of a single electron spin in a noisy environment

TL;DR

This paper demonstrates room-temperature quantum control of a single electron spin in diamond using Landau-Zener-Stuckelberg interferometry, revealing insights into decoherence mechanisms through interference pattern analysis.

Contribution

It introduces a method for probing electron spin decoherence in NV centers via Landau-Zener-Stuckelberg interferometry at room temperature.

Findings

Interference patterns oscillate with microwave frequency.

Decays in interference visibility are explained by thermal nuclear bath fluctuations.

Method can be used to study decoherence processes in solid-state spins.

Abstract

We demonstrate quantum coherent control of a single electron spin in a NV center in diamond using the Landau-Zener-Stuckelberg interferometry at room temperature. Interference pattern is observed oscillating as a function of microwave frequency. The decays in the visibility of the interference are well explained by numerical simulation which includes the thermal fluctuations of the nuclear bath which shows that Landau-Zener-Stuckelberg interferometry can be used for probing electron spin decoherence processes.