Local probing of nuclear bath polarization with a single electronic spin

Abstract

We demonstrate experimentally that a polarized nuclear spin modifies the dynamic behavior of a neighboring electronic spin. Specifically, an out-of-phase component appears in the electronic spin-echo signal. This component is proportional to the nuclear spin degree of polarization and strongly depends on the nuclear polarization direction. When the electronic spin is surrounded by a polarized nuclear spin bath, the spin-echo quadrature manifests a characteristic frequency related only to the nuclear spins abundance and their collective polarization. We use this analysis to propose a novel measurement method for the local nuclear spin bath of a single electronic spin. We quantify the realistic experimental regimes at which the scheme is efficient. Our proposal has potential applications for quantum sensing schemes, and opens a route for a systematic study of polarized mesoscopical-systems.

References in corpus (8)

• High-sensitivity diamond magnetometer with nanoscale resolution
• Dynamic polarization of single nuclear spins by optical pumping of NV color centers in diamond at room temperature
• Detection and control of individual nuclear spins using a weakly coupled electron spin
• Quenching Spin Decoherence in Diamond through Spin Bath Polarization
• Electron spin decoherence of single Nitrogen-Vacancy defects in diamond
• Local and bulk 13C hyperpolarization in NV-centered diamonds at variable fields and orientations
• Optical polarization of nuclear ensembles in diamond
• Coherence of an optically illuminated single nuclear spin qubit

Cited by in corpus (2)

• Three-dimensional solid-state qubit arrays with long-lived spin coherence
• Estimation of nuclear polarization via discrete measurement of NV center spin evolution