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Measurement of transverse hyperfine interaction by forbidden transitions

Mo Chen (陈墨), Masashi Hirose, and Paola Cappellaro
Phys. Rev. B 92, 020101(R) – Published 6 July 2015
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Abstract

Precise characterization of a system's Hamiltonian is crucial to its high-fidelity control that would enable many quantum technologies, ranging from quantum computation to communication and sensing. In particular, nonsecular parts of the Hamiltonian are usually more difficult to characterize, even if they can give rise to subtle but non-negligible effects. Here we present a strategy for the precise estimation of the transverse hyperfine coupling between an electronic and a nuclear spin, exploiting effects due to nominally forbidden transitions during the Rabi nutation of the nuclear spin. We applied the method to precisely determine the transverse coupling between a nitrogen-vacancy center electronic spin and its nitrogen nuclear spin. In addition, we show how this transverse hyperfine coupling, which has been often neglected in experiments, is crucial to achieving large enhancements of the nuclear Rabi nutation rate.

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  • Received 14 April 2015
  • Revised 21 May 2015

DOI:https://doi.org/10.1103/PhysRevB.92.020101

©2015 American Physical Society

Authors & Affiliations

Mo Chen (陈墨)1,2, Masashi Hirose1,3, and Paola Cappellaro1,3,*

  • 1Research Laboratory of Electronics, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
  • 2Department of Mechanical Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
  • 3Department of Nuclear Science and Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA

  • *pcappell@mit.edu

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Issue

Vol. 92, Iss. 2 — 1 July 2015

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