Quantum Memory Enhanced Multipoint Correlation Spectroscopy for Statistically Polarized NMR
Year: 2025
Type: article
Abstract: 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 Letter, we introduce multipoint correlation spectroscopy, which 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.
Source: Physical Review Letters
DOI: 10.1103/1cj2-rxkm
Authors: Tobias Spohn, Nicolas Staudenmaier, Philipp J. Vetter, Timo Joas, Thomas Unden, Ilai Schwartz, Philipp Neumann, Genko Genov, Fedor Jelezko
Institution: Universität Ulm
Language: English
Subfield: Materials Chemistry
Field: Materials Science
Domain: Physical Sciences
Open Access status: hybrid
Estimated APC paid: $3,750
Funders: Carl-Zeiss-Stiftung, Baden-Württemberg Stiftung, European Commission, Deutsche Forschungsgemeinschaft, Bundesministerium für Bildung und Forschung, Deutsches Zentrum für Luft- und Raumfahrt, QuantERA, Center for Integrated Quantum Science and Technology, HORIZON EUROPE Framework Programme, European Research Council
Awards: QCIRCLE Center of Excellence: ACCELERATING QUANTUM IMPACT ON SUSTAINABILITY, G1171162939, G1218517985, G1318376670, G1976204189, G239004219, Spin based quantum computer and simulator (SPINUS), G3832849073, G3835743775, G3898308737, G4082539293, G4432934295, Capacitation of Quantum-Entangled NV-Center Sensing, G5063675077, Quantum + Grade Diamant für Quantentechnologien, G5735999943, G575169067, QuantERA II ERA-NET Cofund in Quantum Technologies, Auf dem Weg zur LichtMaterieQuantenschnittstelle:
Entwicklung eines MultiQubitQuantenregisters basierend auf paramagnetischen Farbzentren in Diamant, G6538831658, G6624113701, G6958768200, G72269343, G7233839064, G7360042452, G749416760, Tieftemperaturkryostat (Teilfinanzierung), G824335927, Verbundvorhaben: QUASIMODO - Diamantquantensensoren für den Einsatz in der Weltraumforschung, TP1: Universität Ulm
OpenAlex ID: W4417268540