Quantum Memory Enhanced Multipoint Correlation Spectroscopy for Statistically Polarized NMR

Fuente: arXiv
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Hauptverfasser: Spohn, Tobias, Staudenmaier, Nicolas, Vetter, Philipp J., Joas, Timo, Unden, Thomas, Schwartz, Ilai, Neumann, Philipp, Genov, Genko, Jelezko, Fedor
Format: Preprint
Veröffentlicht: 2025
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author Spohn, Tobias
Staudenmaier, Nicolas
Vetter, Philipp J.
Joas, Timo
Unden, Thomas
Schwartz, Ilai
Neumann, Philipp
Genov, Genko
Jelezko, Fedor
author_facet Spohn, Tobias
Staudenmaier, Nicolas
Vetter, Philipp J.
Joas, Timo
Unden, Thomas
Schwartz, Ilai
Neumann, Philipp
Genov, Genko
Jelezko, Fedor
contents Nuclear magnetic resonance spectroscopy with solid-state spin sensors is a promising pathway for the detection of nuclear spins at the micro- and nanoscale. Although many nanoscale experiments rely on a single sensor spin for the detection of the signal, leveraging spin ensembles can enhance sensitivity, particularly in cases in which the signal merely originates from statistically polarized nuclear spins. In this work, we introduce multipoint correlation spectroscopy, that combines the advantages of two well-established methods -- correlation spectroscopy and quantum heterodyne detection -- to enable temporally efficient measurements of statistically polarized samples at the nanoscale with spin ensembles. We present a theoretical framework for this approach and demonstrate an experimental proof of concept with a nitrogen vacancy center in diamond. We achieve single hertz uncertainty in the estimated signal frequency, highlighting the potential applications of the technique for nanoscale nuclear magnetic resonance.
format Preprint
id arxiv_https___arxiv_org_abs_2503_18930
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Quantum Memory Enhanced Multipoint Correlation Spectroscopy for Statistically Polarized NMR
Spohn, Tobias
Staudenmaier, Nicolas
Vetter, Philipp J.
Joas, Timo
Unden, Thomas
Schwartz, Ilai
Neumann, Philipp
Genov, Genko
Jelezko, Fedor
Quantum Physics
Nuclear magnetic resonance spectroscopy with solid-state spin sensors is a promising pathway for the detection of nuclear spins at the micro- and nanoscale. Although many nanoscale experiments rely on a single sensor spin for the detection of the signal, leveraging spin ensembles can enhance sensitivity, particularly in cases in which the signal merely originates from statistically polarized nuclear spins. In this work, we introduce multipoint correlation spectroscopy, that combines the advantages of two well-established methods -- correlation spectroscopy and quantum heterodyne detection -- to enable temporally efficient measurements of statistically polarized samples at the nanoscale with spin ensembles. We present a theoretical framework for this approach and demonstrate an experimental proof of concept with a nitrogen vacancy center in diamond. We achieve single hertz uncertainty in the estimated signal frequency, highlighting the potential applications of the technique for nanoscale nuclear magnetic resonance.
title Quantum Memory Enhanced Multipoint Correlation Spectroscopy for Statistically Polarized NMR
topic Quantum Physics
url https://arxiv.org/abs/2503.18930