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Resolving single molecule structures with Nitrogen-vacancy centers in diamond.

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Title: Resolving single molecule structures with Nitrogen-vacancy centers in diamond.
Authors: Kost, M
Cai, J
Plenio, MB
Item Type: Journal Article
Abstract: We present theoretical proposals for two-dimensional nuclear magnetic resonance spectroscopy protocols based on Nitrogen-vacancy (NV) centers in diamond that are strongly coupled to the target nuclei. Continuous microwave and radio-frequency driving fields together with magnetic field gradients achieve Hartmann-Hahn resonances between NV spin sensor and selected nuclei for control of nuclear spins and subsequent measurement of their polarization dynamics. The strong coupling between the NV sensor and the nuclei facilitates coherence control of nuclear spins and relaxes the requirement of nuclear spin polarization to achieve strong signals and therefore reduced measurement times. Additionally, we employ a singular value thresholding matrix completion algorithm to further reduce the amount of data required to permit the identification of key features in the spectra of strongly sub-sampled data. We illustrate the potential of this combined approach by applying the protocol to a shallowly implanted NV center addressing a small amino acid, alanine, to target specific hydrogen nuclei and to identify the corresponding peaks in their spectra.
Issue Date: 5-Jun-2015
Date of Acceptance: 23-Apr-2015
URI: http://hdl.handle.net/10044/1/25390
DOI: https://dx.doi.org/10.1038/srep11007
ISSN: 2045-2322
Publisher: Nature Publishing Group
Journal / Book Title: Scientific Reports
Volume: 5
Copyright Statement: © 2015, Rights Managed by Nature Publishing Group. This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/
Publication Status: Published
Article Number: 11007
Appears in Collections:Quantum Optics and Laser Science
Faculty of Natural Sciences

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