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Highly selective detection of individual nuclear spins with rotary echo on an electron spin probe

TitleHighly selective detection of individual nuclear spins with rotary echo on an electron spin probe
Publication TypeJournal Article
Year of Publication2015
AuthorsMkhitaryan, VV, Jelezko, F, Dobrovitski, VV
JournalScientific Reports
Volume5
Pagination15402
Date Published10
Type of ArticleArticle
ISBN Number2045-2322
Accession NumberWOS:000363394300001
Keywordsdiamond, magnetic-resonance, magnetometry, nitrogen-vacancy centers, qubits, readout, register, sensor, silicon, single spins
Abstract

We consider an electronic spin, such as a nitrogen-vacancy center in diamond, weakly coupled to a large number of nuclear spins, and subjected to the Rabi driving with a periodically alternating phase. We show that by switching the driving phase synchronously with the precession of a given nuclear spin, the interaction to this spin is selectively enhanced, while the rest of the bath remains decoupled. The enhancement is of resonant character. The key feature of the suggested scheme is that the width of the resonance is adjustable, and can be greatly decreased by increasing the driving strength. Thus, the resonance can be significantly narrowed, by a factor of 10-100 in comparison with the existing detection methods. Significant improvement in selectivity is explained analytically and confirmed by direct numerical many-spin simulations. The method can be applied to a wide range of solid-state systems.

DOI10.1038/srep15402
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Nanoscale and Ultrafast