Detection and control of single proton spins in a thin layer of diamond grown by chemical vapor deposition

Kento Sasaki, Hideyuki Watanabe, Hitoshi Sumiya, Kohei M. Itoh, Eisuke Abe

Research output: Contribution to journalArticlepeer-review

Abstract

We report detection and coherent control of a single proton nuclear spin using an electronic spin of the nitrogen-vacancy (NV) center in diamond as a quantum sensor. In addition to determining the NV-proton hyperfine parameters by employing multipulse sequences, we polarize and coherently rotate the single proton spin and detect an induced free precession. Observation of free induction decays is an essential ingredient for high resolution proton nuclear magnetic resonance, and the present work extends it to the atomic scale. We also discuss the origin of the proton as incorporation during chemical vapor deposition growth, which provides an opportunity to use protons in diamond as built-in quantum memories coupled with the NV center.

Original languageEnglish
Article number0016196
JournalApplied Physics Letters
Volume117
Issue number11
DOIs
Publication statusPublished - 2020 Sep 14

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

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