Measurement of the excited-state transverse hyperfine coupling in NV centers via dynamic nuclear polarization
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PhysRevB.95.195308.pdf
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1.24 MB
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Author(s)
Poggiali, F.
Fabbri, N.
Cappellaro, Paola
Date Issued
May 2017
Journal
Physical Review B
Publisher
American Physical Society
Citation
Poggiali, F.; Cappellaro, P. and Fabbri, N. "Measurement of the excited-state transverse hyperfine coupling in NV centers via dynamic nuclear polarization." Physical Review B 95, 195308 (May 2017): 1-8. © 2017 American Physical Society
Version
Final published version
Abstract
Precise knowledge of a quantum system's Hamiltonian is a critical pre-requisite for its use in many quantum information technologies. Here, we report a method for the precise characterization of the nonsecular part of the excited-state Hamiltonian of an electronic-nuclear spin system in diamond. The method relies on the investigation of the dynamic nuclear polarization mediated by the electronic spin, which is currently exploited as a primary tool for initializing nuclear qubits and performing enhanced nuclear magnetic resonance. By measuring the temporal evolution of the population of the ground-state hyperfine levels of a nitrogen-vacancy center, we obtain the first direct estimation of the excited-state transverse hyperfine coupling between its electronic and nitrogen nuclear spin. Our method could also be applied to other electron-nuclear spin systems, such as those related to defects in silicon carbide.
MIT Department
Massachusetts Institute of Technology. Department of Nuclear Science and Engineering
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Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.
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DOI of Published Version
https://doi.org/10.1103/PhysRevB.95.195308
